CXA1202Q-Z/CXA1202R
No. Symbol
Voltage
I/O
DC
AC resistance
4.25V
9 AGC TC (Load: —
—
150kΩ
Equivalent circuit
VCC
500
200
9
200
Description
Pin to apply time constant of
envelope detection for RF AGC.
Optimum load resistance across
Vcc is 150kΩ.
10 AGC OUT
2.5V
100
mVp-p
Emitter
follower
(IE = 1mA)
10
GND
VCC
200
17
AGC output pin for PB VIDEO
signal (Max. gain of AGC AMP is
about 7dB).
1mA
11 HCHG
—
(Open: —
"L")
50kΩ
50k
11
GND
VCC
Control signal input pin for RF SW
switching:
High (over 3V): selects RF IN A
Low (under 0.3V):
selects RF IN B
GND
VCC
150
12
12 RF IN A
2.5V
100
mVp-p
—
20k
Input pin for RF switch and 12dB
AMP.
5
13
DOC
PULSE
14 RF IN B
15 DOC TC
H: 3.2V
L: 0V
—
Emitter
follower
(H: IE =
1mA)
2.5V
100
mVp-p
20kΩ
2.5V —
—
GND
VCC
100
80k 3.5k
13
GND
Same as for Pin No. 12
VCC
90
15
8k 3.3k
Dropout detection signal output
pin; High upon dropout.
Input pin for RF switch and 12dB
AMP.
Pin to connect time constant of
dropout detection.
GND
–4–