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LA72912V Datasheet(PDF) 9 Page - Sanyo Semicon Device

Part No. LA72912V
Description  FM Modulator and Demodulator IC
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Maker  SANYO [Sanyo Semicon Device]
Homepage  http://www.ssdc-jp.com/eng/
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LA72912V
No.A1409-9/12
Continued from preceding page.
Pin No.
Pin Name
Description
Equivalent circuit
8
TC2(DEMOD)/
FMAGC monitor
Output
MOD mode: TC2 filter pin. Please connect C1.
DEMOD mode: FM-AGC-monitor output
8
200
2k
60
µA
C1
1k
30
µA
9
ASK-VCC5V
ASK block VCC. Please supply DC 5V with use capacitor
for de-coupling.
10
ASK CAR IN
ASK carrier input Pin.
Please connect with capacitor, 2.1V by internal biased.
1k
10
50k
2.1V
C1
Max
3.0Vp-p
ASK carrier
11
ASK DATA IN
ASK data input pin.
L level is lower than 0.4V
H level is more than 2V
10k
11
ASK data
30
µA
12
ASK TX Output
ASK output pin.
Push-pull type output.
40
12
40
13
ASK RX Output
ASK detect output.
Open corrector type output.
300
13
14
ASK DET filter
ASK detect filter.
Connect capacitor for reject of ASK AC component.
14
C1
300
60
µA
50k
50k
SIG
Continued on next page.




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