t4227-fbg3 ATMEL Corporation, t4227-fbg3 Datasheet - Page 7

• Manufacturer Part Number: t4227-fbg3
• Description: Time-code Receiver
• Manufacturer: ATMEL Corporation

Test Circuitry with Pull-up Resistor (77.5 kHz)
Test Circuitry with Pull-down Resistor (77.5 kHz)
Rev. A2, 24-Jul-00
~
~
51E
51E
Transformer
Transformer
1k
1k
IN2
IN1
IN2
IN1
Receiver ON
Receiver ON
PON
PDN
PON
PON
PON
Preliminary Information
BIAS
BIAS
77503 Hz
VCC
77503 Hz
RFO
VCC
RFO
Figure 13. Test circuit
Figure 14. Test circuit
3 Volt
3 Volt
RFI
RFI
GND
GND
AGC
AGC
PEAK
PEAK
DET.
DET.
DEM
DEM
PK
PK
2.2nF
2.2nF
2.2 µF
2.2 µF
HLD
OFF
HLD
OFF
ON
ON
AGC HOLD
AGC HOLD
OUT1
OUT2
OUT1
OUT2
T4227
Vcc
Vcc
100k
100k
7 (13)