參數(shù)資料
型號(hào): AM79C202JC
廠(chǎng)商: Electronic Theatre Controls, Inc.
英文描述: Advanced Subscriber Line Interface Circuit
中文描述: 高級(jí)用戶(hù)線(xiàn)接口電路
文件頁(yè)數(shù): 22/48頁(yè)
文件大?。?/td> 501K
代理商: AM79C202JC
22
Am79213/Am79C203/031 Data Sheet
Table 6. ASLAC Device Transmission and Signaling Specifications
No.
Item
Condition
Min
Typ
Max
Unit
Note
1
Insertion loss
A-D
D-A
A-D + D-A
Input: 1014 Hz,
10 dBm0
RG = AR = AX = GR = GX = 0 dB,
AISN, R, X, B, and Z filters disabled
T
A
= 0
°
C to 70
°
C
T
A
=
40
°
C to 0
°
C/70
°
C to 85
°
C
T
A
= 0
°
C to 70
°
C
T
A
=
40
°
C to 0
°
C/70
°
C to 85
°
C
T
A
= 70
°
C
T
A
= 0
°
C
70
°
C; VCC = 4.75
5.25 V
T
A
=
40
°
C to 0
°
C/70
°
C to 85
°
C
0.25
0.30
0.25
0.30
0.20
0.25
0.34
0
0
0
0
0
0
0
+0.25
+0.30
+0.25
+0.30
+0.20
+0.25
+0.34
dB
7
2
Level set error (error be-
tween setting and
actual value)
A-D
AX + GX
0.1
+0.1
D-A
AR + GR
0.1
+0.1
3
DR to DX gain in Full
Digital Loopback mode
DR input: 1014 Hz,
10 dBm0
RG = AR = AX = GR = GX = 0 dB,
AISN, R, X, B, and Z filters disabled
T
A
=
40
°
C to 0
°
C/70
°
C to 85
°
C
0.3
0.35
+0.3
+0.4
4
Idle channel noise,
psophometric weighted
(A-law)
AX = 0 dB
AR = 0 dB
A-D (PCM output)
68
dBm0p
12
D-A (V
OUT
)
78
5
Idle channel noise,
C-message weighted
(μ-law)
AX = 0 dB
AR = 0 dB
A-D (PCM output),
GX = +8 dB
+16
dBrnC0
D-A (2 wire),
GR =
8 dB
+12
6
Coder offset decision
value, Xn
A-D, Input signal = 0 V, A-law
5
+5
Bits
6
7
GX step size
0
GX < 10 dB
10
GX
12 dB
0.1
0.3
dB
4
8
GR step size
12
GR
0 dB
0.1
9
PSRR (V
CC
)
Image frequency
Input: 4800 to 7800 Hz
200 mV p-p
Measure 8000 Hz input frequency
A-D
37
dB
4
D-A
37
10
Group delay
PCLK
1.53 MHz
PCLK
1.03 MHz
1014 Hz;
10 dBm0
B, X, R, and Z filters set to default
590
655
μ
s
4, 14
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