TEMIC Semiconductors U4221B
The U4221B is a bipolar integrated straight through receiver circuit in the frequency range of 60 to 80 kHz. The device is designed for radio controlled clock application. PON If PON is connected to VCCD, the U4221B receiver IC will be activated.| Part No. | U4221B |
|---|---|
| Datasheet | U4221B Download |
| Manufacturer |  TEMIC Semiconductors |
| Description | Radio Controlled Clock Receiver |
| Buy | Stock & Price |
DESCRIPTION
FEATURES
D Low power consumption D Very high sensitivity D High selectivity by quartz resonator D Stop-function available D Only a few external components necessary D Digitized serial output signal Block Diagram PON 14 TCO 13 FSI 12 NC 10 VCCD 9 VCCA 16 Power supply Driver Comparator 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 - U4221B PinDESCRIPTION
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 1 - Input 1 Analog ground Time constant of AGC Low pass filter Amplifier 2 input Digital ground Amplifier 1 output Supply voltage (digital) Not connected Field strength select Field strength indication Time code output Power ON/OFF control Ground (substrate) Supply voltage (analog...
