HT9011 Просмотр технического описания (PDF) - Holtek Semiconductor
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HT9011 Datasheet PDF : 7 Pages
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Preliminary
HT9011
Pin Assignment
O SCI
O SCO
M IX O
VCC
IF IN
DEC
FSKR
IF O
Q UAD
AFO
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
H T9011
20 S S O P
M IX I
GND
REG O
REG C
A LM
FSKO
CHG
BS
LP FO
LP FI
Pin Description
Pin No. Pin Name
1
OSCI
2
OSCO
3
MIXO
4
VCC
5
IFIN
6
DEC
7
FSKR
8
IFO
9
QUAD
10 AFO
11 LPFI
12 LPFO
13 BS
I/O
Description
I These pins are connected to the external parts of an oscillating
O circuit.
O
Mixer output pin. Connect a 455kHz ceramic filter between this
pin and the IFIN pin.
¾ Positive power supply
I Input terminal for IF Amp.
I Bias Decoupling
I
Reference input of differential amplifier for waveform shaping.
Connect the capacitor externally.
O
IF Amplifier Output pin. Connect the discri-
minator through the coupling capacitor.
I
FM demodulator phase shift input pin connected to a quadrature
detector phase shifter.
O FM demodulator output pin
I Low Pass Filter Input pin
O Low Pass Filter Output pin
Battery-saving Control pin
I ²H² Normal Operation
²L² Battery-saving
2
March 1, 2000
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