參數(shù)資料
型號: PCA1070T
廠商: NXP SEMICONDUCTORS
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Multistandard programmable analog CMOS transmission IC
中文描述: SPECIALTY TELECOM CIRCUIT, PDSO24
文件頁數(shù): 14/36頁
文件大小: 180K
代理商: PCA1070T
1997 Jun 20
14
Philips Semiconductors
Product specification
Multistandard programmable analog
CMOS transmission IC
PCA1070
Programmable amplifier (prog-amp)
An identical programmable amplifier called ‘prog-amp’ is used both in the sending and receiving channel. The bit codes
GMAx and GRAx are given in Table 13. The permitted adjustment range differs for the two amplifiers and is also different
for DTMF and speech mode. This is indicated in the corresponding sections.
Table 13
Bit code prog-amp
GAIN
(dB)
GMA5 GMA4 GMA3 GMA2 GMA1 GMA0
GRA5 GRA4 GRA3 GRA2 GRA1 GRA0
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
(1)
5
4
3
2
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Notes
1.
2.
Default value ‘rec prog-amp’ GRAx.
Default value ‘sending prog-amp’ GMAx.
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
(2)
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
GAIN
(dB)
GMA5 GMA4 GMA3 GMA2 GMA1 GMA0
GRA5 GRA4 GRA3 GRA2 GRA1 GRA0
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