CXA1998AQ
框图和引脚配置
（ TOP VIEW ）
AGC OUT2
REC OUT2
AGC IN2
XRESET
REC IN2
DGND
GND
数据
RFC
VCC
36
RFS
35
VG
34
33
32
31
30
29
28
27
26
25
24 LATCH
V
DD
23 V
DD
D1
GND
D2
GND
10k
2.8V
40k
AGC增益19.5分贝
IREF 37
GND
GND
PB OUT2 38
IREF
RECEQ
CLK
210k
PB FB22 39
PB FB12 40
22 M2
PBEQ CTL
21 M1
210k
AGC OFF
一个EQ
DECK A / B
GND
移位寄存器
GND
D3
PB INB2 41
B EQ
20 PL2
锁存器
AGC
GND
D4
GND
D5
GND
D6
GND
D9
RECEQ CTL
PB INA2 42
PB INA1 43
19 PL1
速度
18
BPB
GND
PB INB1 44
17 BPA
16 SPEED
210k
PB 45 FB11
PB FB21 46
210k
D8
MUTE（静音）
40k
AGC增益19.5分贝
D10
GND
RECEQ
D7
PB OUT1 47
2.8V
GND
AMS
V
DD
GND
20k
D9
D11
D11
GND
15 RMUTE
20k 20k
GND
20k
14 RMUTEI
V
DD
1
2
3
4
5
6
7
8
9
GND
GND
FP CAL 48
10k
13 PBMUTE
10
11
12
REC IN1
AGC OUT1
REC OUT1
AMS GAIN
AMS GND
AGC IN1
AMS TC
一个EQ
GP CAL
B EQ
–2–
AMS OUT
AGC TC
