UPB553AC NEC | Alldatasheet

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Technical content

Yee ae 199) NEC oso ume pivive-py-t617 | omces,

150 MHz DIVIDE-BY-16/17 | UPB553AC

DESCRIPTION

The UPBSS3AC is a VHF two-modulus prescaler intended for use in measurement instrumentation and PLL Digital Tuning Systems in conjunction with UPD1700 series. Advanced bipolar process technology is utilized to realize high frequency operation with ‘extremely low power consumptions. The device provides +16 and +17 division ratio for NEC's original pulse swallowing method, and is guaranteed to operate up to 130 MHz over the -35°C to +75°C temperature range with a Vcc variation from +4.5 to +5.5 V. An included amplifier allows it to be operated with a small amplitude signal of 150 mVp-p.

FEATURES

© High frequency operation: 150 MHz (+16)

130 MHz (+17)

@ NEC's original pulse swallowing operation: 16/417 @ Small input amplitude: Vin = 150 m Vp-p (MIN.) © Single supply voltage: Vcc = 5.0 V 210% © Low supply current: icc = 8.9 mA (TYP.) ® Incorporated butter amplifier: VoF1.2 Vp-p (TYP.) © Small package: 8 pin plastic dual in-line package (DIP) PACKAGE DIMENSIONS (Unit: mm) 10.5 MAX. 1 oo Oe coe oes | ——— : = a a a OCC fe ° i } z 2 02 iS N 05 2.62 . jO~ 15° California Eastern Laboratorjes

Supply Voltage Vee 0.5 to 6.0 v Input Voltage Vi 0.5 to Voc Vv Output Current lo 10 mA Junction Temperature Tj +125, °¢ Storage Temperature Tstg —55 to +125, °c RECOMMENDED OPERATING CONDITIONS Supply Voitage Range Vec 4510 5.5 v Ambient Temperature Ta 35 to +75 °c Output Load Capacitance Cy less than 10 picofarad ELECTRICAL CHARACTERISTICS (Vcc =5 V +10 %, Ta = —35 to +75 °C) CHARACTERISTIC symeou | min. | Tye, | Max. | uNIT | TEST CONDITIONS [ovisuvaruge | vo 0a [aa |__| ver | uring | Input voirege | Vin fos || 2.0 | Vee | iNterminal [wort nsatvarage | Vin Save] | | _v_] scenes | Note: CHK terminal should be connected to GND.

: UPB553AC BLOCK DIAGRAM (Top View ) | > Q ENABLE PULSE x . i © iP ~<a Se eMOS EL Cr) > O Level Transiaor vee @= |_| CHK © - - opie} TIMING CHART IN CHK Fanan | | OuT 17 pulses 16 pulses CONNECTION DIAGRAM Pin Number Symbo! Function

1 Vcc Power Supply (Vcc)

[e] [se] [s] 2 IN Signal Input

3 CHK Check (Normally to GND)

4 GND GND

(Top View)

5 OUT Output

OT 12] [] 6 PSC Division Ratio Contro!*

7 NC No Connection

8 NC ‘No Connection

*: When PSC terminal fixed high or low level, the wPB553AC functions as a +/16 prescaler.

———— APPLICATION-1 uPBSS3AC FM OSC, IN OUT FM 2 5 PSC PSC FM RADIO uPD1700 series FM TUNING | ACTIVE co! FILTER MUTE STATION DETECTOR so APPLICATION-2 FM FRONT END (US.) BUFFER PRESCALER 1 to Mixer b Vcc 1 o.o1me a7on Meta) 1 t Z Sry 7S pos eg H 1 ry > Hi 4 ay ta 10uF/6v \\ E9016 0.01uF $ ' 220«n i i & 15pF ask104 5 trom PLL (PSC) 12 300F re) ' uPD17% 1 7oF 1000pF 2200F 1 series t 15k 2 wPBSS3AC 5 $0 PLL FM} 0.01uF H 0.01mF 10pFS1k2 Kn 34 ia | hookn’ I 470k2 i 1 ' Li-4---~----- ee ee ee ee ee ee ee eee eed Tuning Voltage EXCLUSIVE AGENT FOR NEC Corporation RF & MICROWAVE SEMICONDUCTOR PRODUCTS - U.S. & CANADA (CALIFORNIA EASTERN LABORATORIES, INC. @ Hescquarers © 3260 Jay Stes @ Santa Clara CA 95054 @ (408) 968-3500 © Jee 34-42BYFAX (408) 968-0279 x oz4ze6 Ye DATA SUBJECT TO CHANGE WITHOUT NOTICE-805, 7 PRINTED INU SA- 3/89