FSA2000 ONSEMI | Alldatasheet
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© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier FSA2000 Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier
Features
Switch Type USB + Headphone Amplifier Switch Mechanism Auto (USB with VBUS) USB Detection YES USB USB 2.0 High Speed & Full-Speed Compliant Audio Amplifier Class AB Amplifier Output Power 40mWRMS (32Ω) Amplifier Gain 0dB THD+N 0.1% SNR -90dB PSRR -95dB VCC 2.7 to 4.3V ICC (Audio) 3mA ICC(USB) 6µA Package 16- Lead UMLP 1.80 x 2.60 x 0.55mm, 0.40mm pitch
Applications
MP3 Portable Media Players Cellular Phones, Smartphones
Description
The FSA2000 is a low-cost integrated HS-USB and audio switch that incorporates an audio headphone amplifier. This solution eliminates many of the discr ete parts currently used in stereo headset applications. It provides stereo headphone drivers designed to operate with a ground-centered output signal. This allows for the removal of large and expensive DC blocking capacitors. The headphone drivers are capable of driving up to 40mWRMS per channel. Related Resources FSA2000 Demonstration Board FSA2000 Evaluation Board FDB323 — FSA2000 Demonstration Board User Guide FEB322 — FSA2000 Evaluation Board User Guide AN-8032 — Demonstration Board Quick-Start Guide AN-8031 — Utilizing the FSA2000 MUTE Function to Reduce Audio “Click” and “Pop” For samples, questions, or board requests; please contact: Analog.Switch@fairchildsemi.com. Typical Application Figure 1. Mobile Phone Example
1 D+ I/O USB D+ port from processor or transceiver
2 D- I/O USB D- port from processor or transceiver
3 R Input Right audio channel input
4 L Input Left audio channel input
/SHDN. Ground if not being used.
8 GND GND IC ground
9 D-/L I/O Common USB/Audio Port; USB D- data to connector or left audio channel output
10 D+/R I/O Common USB/Audio Port; USB D+ data to connector or right audio channel output
11 VBUS Input/Supply USB input select pin and USB supply
12 V+ Node Node for filtering internal positive amplifier rail; suggest 1µF to GND
13 V- Input Negative amplifier rail input; suggest 1µF to GND. Requires connection to CPO. 14 CPO Output Charge pump output used to drive V-, suggest 2.2 µF to GND for filtering. 15 CM I/O Charge pump negative flying capacitor pin; connect to CP via storage capacitor, typically 1µF. 16 CP I/O Charge pump positive flying capacitor pin; connect to CM via storage capacitor ,typically 1µF. Figure 2. FSA2000UMX (Top View)
Figure 4. Micro-USB Application Device Placement – Minimize to USB port & USB TX. It is desirable to be below the 20Hz audio range. cut-off frequency of the recommended guidelines. capacitors; as close to the device as possible. connector and device; minimize ground path resistance. close to the device as possible. V-. Optimized values for these capacitors are in Figure 4.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VCC Supply Voltage Audio Mode -0.3 +4.5 V USB Mode -0.3 +6.0 VBUS Supply Voltage -0.3 +6.0 V VCNTRL Control Pin Voltage - /SHDN, MUTE -0.3 +6.0 V VSWUSB USB I/O VBUS – 6.0 VBUS + 0.3 V VSWAUDIO Audio I/O VCC – 6.0 VCC + 0.3 V ISW Switch I/O Current (Continuous) 30 mA IPEAK Peak Switch I/O Current (Pulsed, 1ms Duration, <10% Duty Cycle) 50 mA TJ Junction Temperature +150 C TSTG Storage Temperature Range -65 +150 C TL Lead Temperature (Soldering, 10 seconds) +240 C ESD IEC 61000-4-2 System USB Connector pins (D+/R, D-/L, VBUS) Air Gap 15 kV JEDEC JESD22-A114, Human Body Model D+/R, D-/L 4 All Other Pins 2 VBUS 1 JEDEC JESD22-C101, Charged Device Model All Pins 2 Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operatin g conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding these ratings or designing to Absolute Maximum Ratings. Symbol Parameter Min. Typ. Max. Unit VBUS USB Supply Voltage 4.0 5.0 5.5 V VCC Supply Voltage 2.7 3.3 4.5 V VCNTRL Control Voltage - /SHDN, MUTE 0 VCC V VSWUSB D+/L, D-/R, D+, D- Input Range 0 VBUS V VSWAUDIO L,R Audio Input Range -2.5 VCC V VSWING L,R Audio Input Amplitude 5 VP-P TA Temperature Range -40 +25 +85 °C ZLOAD Headset Load Impedance 16 32 Ω JA Package Thermal Resistance, JEDEC Standard Multi-Layer Boards, Still Air 40 C/W
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier TA = 25°C, V CC = 3.0V, audio inputs at - 6dBV and AC coupled with 0.1µF, audio outputs DC coupled into 32Ω loads referenced to 1kHz, unless otherwise noted. Symbol Parameter VCC (V) Conditions TA = - 40°C to +85°C Unit Min. Typ. Max. Common Pins VIH /SHDN, MUTE, Control Input Voltage HIGH 2.7 to 4.5 1.65 V VIL Control Input Voltage LOW 2.7 to 4.5 0.5 IIN /SHDN, MUTE, Input HIGH Current 4.5 VCNTRL = 3.6V -1 µA VCNTRL = 0V -1 1 IOFF Power Off Leakage Current VCC = VBUS = 0 Common Port (D+/R, D-/L) VSW = 0V, 5.5V 10 µA INO(0FF) Off-Leakage Current of Port D+, D- 3.6 D+/R, D-/L = 0.3V, VCC – 0.3V, D+, D- = 0.3V, VCC – 0.3V or Floating, /SHDN=0V, VBUS=0v, MUTE=0V, R/L=0V -50 1 50 nA INC(0N) On-Leakage Current of Port D+/R or D-/L 3.6 D+/R, D-/L = 0.3V, VCC – 0.3V D+, D- = Floating VBUS=5.5V, /SHDN=0V, MUTE=0V, R/L=0V -50 1 50 nA RPD VBUS, MUTE, Internal Pull-Down Resistor 3.5 M USB Switch Path USB Analog Signal Range 0 3.6 V RONUSB HS Switch On Resistance (2) VBUS=5 VD+/D- = 0V, 0.4V, ION = -8mA 4.0 6.5 Ω ∆ RONUSB HS Delta RON (2, 3) VBUS=5 VD+/D- = 0V, ION = - 8mA 0.4 Ω Audio Amplifier Path ZIN Audio Amp Input Impedance (4) 3.0 to 4.5 90 kΩ Power Supply ICC(Audio) Quiescent Supply Current (Audio Mode)
4.5 IOUT = 0, /SHDN = VCC,
MUTE=0V, D+/D-=0V 3 5 mA ICC(/SHDN) Quiescent Supply Current (VCC) in Shutdown Mode 4.5 IOUT = 0, /SHDN = 0V, MUTE=0V, D+/D-=0V 1 5 µA ICC(USB) Quiescent Supply Current (USB Mode) VBUS=5.5 IOUT=0, MUTE=0V, /SHDN=VBUS, L/R=0V 6 10 µA Notes: 2. On resistance is determined by the voltage drop between the D+/D- and D+/R,D-/L pins at the indicated current through the switch. 3. ∆RON = RON_max – RON_min measured at identical VCC, temperature, and voltage. 4. Guaranteed by characterization, but not production tested.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier TA = 25°C, V CC = 3.0V, audio inputs at - 6dBV and AC coupled with 0.1µF, audio outputs DC coupled into 32Ω loads referenced to 1kHz, unless otherwise noted. Symbol Parameter VCC (V) Conditions TA = - 40°C to +85°C Unit Min. Typ. Max. Audio Amplifier Path tONAUDIO Turn-On Time /SHDN to Output 3.0 to 4.5 VD+/R, D-/L = 1.0V; CL = 0pF, 1 ms tOFFAUDIO Turn-Off Time /SHDN to Output 3.0 to 4.5 VD+/R, D-/L = 1.0V; CL = 0pF 100 μs tMUTE_ON MUTE Turn-On Time 3.0 to 4.5 1 μs tMUTE_OFF MUTE Turn-Off Time 3.0 to 4.5 1 μs Pout Output Power(5) 2.7 THD_N=1%, VL,R In Phase, RLOAD=32Ω, 1KHz mWrms 3.3 35 4.5 40 VOS Output Offset Voltage Inputs Grounded 5 mV AV Amplifier Gain Input = -26dBV at 1kHz, RL=16Ω 0 dB AMATCH Gain Matching of L & R Channels (5) Input = -26dBV, 20Hz to 20kHz 0.5 dB fR Frequency Response (5) 20Hz to 20kHz referenced to 1kHz -1.5 1.5 dB THD+N Distortion (5) f=1KHz, Vsw=50mVrms, RL=64Ω 0.1 % SNR Signal to Noise Ratio (5) A Weighted -90 dB XTLKsprk Crosstalk between L & R Channel (5) Input=-26bBV -60 dB USB Switch Path tPDUSB USB Switch Propagation Delay (5) 4.0 to 5.5 RL = 50Ω; CL = 0pF 0.25 ns tONUSB Turn-On Time VBUS to Output 4.0 to 5.5 VD+/R, D-/L = 1.0V; RL = 32Ω; CL = 0pF, /SHDN,VCC=0 5.5 μs tOFFUSB Turn-Off Time VBUS to Output 4.0 to 5.5 VD+/R, D-/L = 1.0V; RL = 32Ω; CL = 0pF, /SHDN,VCC=0 2 μs BW -3db Bandwidth – USB 4.0 to 5.5 RL=50Ω, CL=0pF, Signal 0dBm 720 MHz Power Supply tSUPPLY Power-Up Stabilization Time V+, V- within 90% of Final Value 1 ms PSRRSPKR Power Supply Noise Rejection at Common Output (5) 217Hz 12% Duty Cycle Square Wave 2.7V to 3.2V at VCC Output (D+/R) in Vrms as Single Wideband Noise Measurement within 20Hz – 20kHz, A Weighted -95 dB Note: 5. Guaranteed by characterization; not production tested.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier USB High-Speed-Related AC Electrical Characteristics TA = 25°C unless otherwise noted. Symbol Parameter VBUS (V) Conditions TA = - 40°C to +85°C Unit Min. Typ. Max. tSK(P) Skew of Opposite Transitions of the Same Output (6) 4.0 to 5.5 tR = tF = 750ps (10-90%) at 240MHz CL = 0pF, RL = 50Ω 35 ps tJ Total Jitter (6) 4.0 to 5.5 RL = 50Ω, CL = 50pF, tR = tF = 500ps (10-90%) at 480Mbps (PRBS = 2 – 1) 130 ps Note: 6. Guaranteed by characterization; not production tested. Capacitance TA = 25°C unless otherwise noted. Symbol Parameter VCC /VBUS(V) Conditions TA = - 40°C to +85°C Unit Min. Typ. Max. CIN Control Pin Input Capacitance (/SHDN, MUTE) VCC = 3.0, 4.5 VBias = 0.05V 2.8 pF CON_USB D+, D- (Source Port) On Capacitance VBUS=5.0 VBias = 0.2V, f = 1MHz, f=240MHz 8.8 pF COFF_USB D+, D- (Source Port) Off Capacitance VBUS=5.0 f = 1MHz 2.8 pF
Figure 7. 16-Pin Ultrathin Molded Leadless Package (UMLP) therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/.
0.10 C A B
B. DIMENSIONS ARE IN MILLIMETERS.
© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA2000 • Rev. 1.0.0 FSA2000 – Auto-Selecting HS-USB Switch with Cap-Free Headphone Audio Amplifier
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