參數(shù)資料
型號: PCA1070
廠商: NXP Semiconductors N.V.
英文描述: Multistandard programmable analog CMOS transmission IC
中文描述: 多標(biāo)準(zhǔn)傳輸可編程模擬CMOS集成電路
文件頁數(shù): 12/36頁
文件大?。?/td> 180K
代理商: PCA1070
1997 Jun 20
12
Philips Semiconductors
Product specification
Multistandard programmable analog
CMOS transmission IC
PCA1070
WRITE AND READ TABLES
DC voltages
Table 8
DC voltage at pin SLPE
Set impedance
Programming the impedance in the audio frequency range seen at pin LN: R
a
+ (R
b
// C)
Table 9
Programming R
a
Notes
1.
For Z
set
combinations where R
a
= 0 only R
b
= 600
is allowed. If R
a
500
it is obligatory that R
b
= 0. This is to
safeguard stable operation of the line interface under all practical conditions. If Z
ref
requires R
a
= 0 and R
b
600
use R
a
= 100
instead and reduce the original R
b
by 100
.
X = don’t care.
2.
VDC2
VDC1
VDC0
V
SLPE
(V)
3.1
3.5
3.9
4.3
4.7
5.1
5.5
5.9
REMARK
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
default
ZSA2
ZSA1
ZSA0
R
a
(
)
0
100
200
300
400
500
600
REMARK
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
X
default
note 1
notes 1 and 2
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