U4221B
U4221B is Radio Controlled Clock Receiver manufactured by TEMIC Semiconductors.
.Data Sheet.co.kr
Radio Controlled Clock Receiver
Description
The U4221B is a bipolar integrated straight through receiver circuit in the frequency range of 60 to 80 k Hz. The device is designed for radio controlled clock application.
Features
D Low power consumption D Very high sensitivity D High selectivity by quartz resonator D Stop-function available D Only a few external ponents necessary D Digitized serial output signal
Block Diagram
PON 14 TCO 13 FSI 12 NC 10 VCCD 9
VCCA 16
Power supply
Driver parator
FSS 11
GND 15 AGC
CAGC 4 IN2 1 IN1 2 Amplifier 1 Amplifier 2 Demodulator
3 GND (analog)
8 OUTA1
6 INA2
Figure 1.
7 GND (digital)
5 CDEM
93 7506 e
TELEFUNKEN Semiconductors Rev. A1, 15-May-96
1 (12)
Preliminary Information
Datasheet pdf
- http://..net/
.Data Sheet.co.kr
Pin Description
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol IN2 IN1 GND CAGC CDEM INA2 GND OUTA1 VCCD NC FSS FSI TCO PON GND VCCA Function Amplifier 1
- Input 2 Amplifier...