ICS83905I ICST | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 16
Technical content
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER GENERAL DESCRIPTION The ICS83905I is a low skew, 1-to-6 LVCMOS / LVTTL Fanout Buffer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The low impedance LVCMOS/LVTTL outputs are designed to drive 50W series or parallel terminated transmission lines. The ef- fective fanout can be increased from 6 to 12 by utilizing the ability of the outputs to drive two series terminated lines. The ICS83905I is characterized at full 3.3V, 2.5V, and 1.8V, supply mode. Guaranteed output and part-to-part skew characteristics along with the 1.8V output capabilities makes the ICS83905I ideal for high performance, single ended appli- cations that also require a limited output voltage. BLOCK DIAGRAM PIN ASSIGNMENT
FEATURES
- 6 LVCMOS / LVTTL outputs
- Outputs able to drive 12 series terminated lines
- Crystal oscillator interface
- Crystal input frequency range: 10MHz to 40MHz
- Output skew: 80ps (maximum)
- RMS phase jitter @ 25MHz, (100Hz - 1MHz): 0.26ps (typical) (VDD = VDDO = 2.5V) Phase noise: Offset Noise Power
- 5V tolerant enable inputs
- Synchronous output enables
- Operating power supply modes: Full 3.3V, 2.5V and 1.8V, mixed 3.3V core/2.5V output operating supply, mixed 3.3V core/1.8V output operating supply, mixed 2.5V core/1.8V output operating supply
- -40°C to 85°C ambient operating temperature
- Lead-Free package fully RoHS compliant HiPerClockS™ ICS ICS83905I 16-Lead TSSOP 4.4mm x 5.0mm x 0.92mm body package G Pacakge Top View XTAL_OUT ENABLE 2 GND BCLK0 VDDo BCLK1 GND BCLK2 XTAL_IN ENABLE 1 BCLK5 VDDO BCLK4 GND BCLK3 VDD SYNCHRONIZE SYNCHRONIZE BCLK0 BCLK1 BCLK2 BCLK3 BCLK4 BCLK5 ENABLE 1 ENABLE 2 XTAL_IN XTAL_OUT
TABLE 1. PIN DESCRIPTIONS TABLE 2. PIN CHARACTERISTICS TABLE 3. OUTPUT ENABLE AND CLOCK ENABLE FUNCTION TABLE FIGURE 1. ENABLE TIMING DIAGRAM
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER ABSOLUTE MAXIMUM RATINGS Supply Voltage, VDD 4.6V Inputs, VI -0.5V to VDD + 0.5 V Outputs, VO -0.5V to VDDO + 0.5V Package Thermal Impedance, θJA
16 Lead TSSOP package
89°C/W (0 lfpm) Storage Temperature, TSTG -65°C to 150°C NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions be- yond those listed in the DC Characteristics or AC Character- istics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDO = 3.3V±5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V D D e g a tlo V ylp p u S e r o C V V O D D e g a tlo V ylp p u S t u p t u O V I D D t n e rr u C ylp p u S r e w o P E L B A N E A m I O D D t n e rr u C ylp p u S t u p t u O E L B A N E A m TABLE 4B. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDO = 2.5V±5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V D D e g a tlo V ylp p u S e r o C V V O D D e g a tlo V ylp p u S t u p t u O V I D D t n e rr u C ylp p u S r e w o P E L B A N E A m I O D D t n e rr u C ylp p u S t u p t u O E L B A N E A m TABLE 4C. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDO = 1.8V±0.2V, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V D D e g a tlo V ylp p u S e r o C V V O D D e g a tlo V ylp p u S t u p t u O V I D D t n e rr u C ylp p u S r e w o P E L B A N E A m I O D D t n e rr u C ylp p u S t u p t u O E L B A N E A m TABLE 4D. POWER SUPPLY DC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U V D D e g a tlo V ylp p u S e r o C V V O D D e g a tlo V ylp p u S t u p t u O V I D D t n e rr u C ylp p u S r e w o P E L B A N E A m I O D D t n e rr u C ylp p u S t u p t u O E L B A N E A m
TABLE 5. CRYSTAL CHARACTERISTICS
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER TABLE 6A. AC CHARACTERISTICS, VDD = VDDO = 3.3V±5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N TABLE 6B. AC CHARACTERISTICS, VDD = VDDO = 2.5V±5%, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij E T O N m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D olp e sio n e s a h p o t r e f e r e s a el P E T O N n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER TABLE 6D. AC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 2.5V±5%, TA = -40°C TO 85°C TABLE 6C. AC CHARACTERISTICS, VDD = VDDO = 1.8V±0.2V, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER TABLE 6E. AC CHARACTERISTICS, VDD = 3.3V±5%, VDDO = 1.8V±0.2V, TA = -40°C TO 85°C TABLE 6F. AC CHARACTERISTICS, VDD = 2.5V±5%, VDDO = 1.8V±0.2V, TA = -40°C TO 85°C l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N l o b m y S r e t e m a r a P s n o iti d n o C t s e T m u m i n i M l a c i p y T m u m i x a M s ti n U f X A M y c n e u q e r F t u p t u O la ts y r C la n r e tx E g nis U z H M k c ol C la n r e tx E g nis U e c r u o S E T O N C D z H M c d o elc y C yt u D t u p t u O t o k s E T O N w e k S t u p t u O s p t Ø (tij m o d n a R r e ttiJ e s a h P S M R n oit a r g e t n z H M z H M z H e g n a R s p tR/tF e m i T lla F e si R t u p t u O o t s p t N E e m i T elb a n E t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c t S I D e m i T elb a si D t u p t u O E T O N E L B A N E s elc y c E L B A N E s elc y c ƒ t a d e r u s a e m s r e t e m a r a p ll A X A M e si w r e h t o d e t o n s s eln u t u p nila ts y r c a g nis u t a d e t a ni m r e T Ω V o t O D D e div o r p dlu o w la ts y r c a la n gis a o t e vit ale r n e vir d r e v o e b n a c N I L A T X E T O N V t a d e r u s a e M n oitid n o c d a olla u q e h ti w d n a e g a tlo v ylp p u s e m a s e h t t a st u p t u o n e e w t e b w e k s s a d e nif e D E T O N O D D n oitc u d o r p ni d e ts e t t o N n oit a zir e tc a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h T E T O N d r a d n a t S C E D E J h ti w e c n a d r o c c a ni d e nif e d si r e t e m a r a p sih T E T O N
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER TYPICAL PHASE NOISE AT 25MHZ (2.5V CORE/ 2.5V OUTPUT) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 100 10k 100k 25MHz RMS Phase Jitter (Random) 100Hz to 1MHz = 0.26ps (typical) OFFSET FREQUENCY (HZ) NOISE POWER dBc Hz Raw Phase Noise Data TYPICAL PHASE NOISE AT 25MHZ (3.3V CORE/ 3.3V OUTPUT) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 -180 -190 100 10k 100k 25MHz RMS Phase Jitter (Random) 100Hz to 1MHz = 0.13ps (typical) OFFSET FREQUENCY (HZ) NOISE POWER dBc Hz Raw Phase Noise Data
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER PARAMETER MEASUREMENT INFORMATION SCOPE Qx LVCMOS 1.8V CORE/1.8V OUTPUT LOAD AC TEST CIRCUIT 2.4±0.9V VDDO -0.9V±0.1V VDD 0.9V±0.1V SCOPE Qx LVCMOS 2.5V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT 2.05V±5% VDDO -1.25V±5% VDD 1.25V±5% 3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT SCOPE Qx LVCMOS 1.65V±5% -1.165V±5% 3.3V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT 3.3V CORE/1.8V OUTPUT LOAD AC TEST CIRCUIT 2.5 CORE/1.8V OUTPUT LOAD AC TEST CIRCUIT SCOPE Qx LVCMOS 1.25V±5% -1.25V±5% SCOPE Qx LVCMOS 0.9V±0.1V -0.9V ± 0.1V SCOPE Qx LVCMOS 1.6V±0.025% VDDO -0.9V±0.1V VDD 0.9V±0.1V VDD, VDDO GND VDD, VDDO GND VDD, VDDO GND GND GND GND
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER Clock Outputs 20% 80% 80% 20% tR tF tPERIOD tPW tPERIOD odc = VDD x 100% tPW BCLKx OUTPUT RISE/FALL TIME OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD OUTPUT SKEW tsk(o) VDDO VDDO Qy Qx
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs. TABLE 7. θJAVS. AIR FLOW TABLE FOR 16 LEAD TSSOP
TABLE 8. PACKAGE DIMENSIONS FOR TSSOP
TABLE 9. ORDERING INFORMATION for use in life support devices or critical medical instruments. The aforementioned trademark, HiPerClockS™ is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries. NOTE: Parts that are ordered with an “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant.
http://www.icst.com/products/hiperclocks.html REV. B MAY 16, 2005 Integrated Circuit Systems, Inc. ICS83905I LOW SKEW, 1:6 CRYSTAL INTERFACE-TO- LVCMOS / LVTTL FANOUT BUFFER T E E H S Y R O T S I H N O I S I V E R v e R e l b a T e g a P e g n a h C f o n o it p ir c s e D e t a D A m a r g ai D g ni m i T elb a n E d e d d A B F A ellu b r e ttiJ e s a h P S M R d e d d a n oitc e S s e r u t a e F e p s r e ttiJ e s a h P S M R d e d d a s elb a T s citsir e tc a r a h C C A e r u t a r e p m e t g nit a r e p o t n eib m a d e tc e rr o C ol P e sio N e s a h P d e d d A B n oitc e S n oit a cilp p A ni e c a fr e t n I t u p n Ila ts y r C d e d d A u o y al cit a m e h c s d e d d A