AM79C202 Legerity, AM79C202 Datasheet - Page 19

• Manufacturer Part Number: AM79C202
• Description: (AM79C202 / AM79212) PCM CODEC
• Manufacturer: Legerity

No.
10
1
2
3
4
5
6
7
8
9
Insertion loss
A-D
D-A
A-D + D-A
Level set error (Error
between setting and
actual value)
DD to DU gain in Full
Digital Loopback mode
Idle channel noise,
psophometric weighted
(A-law)
Idle channel noise,
C-message weighted
(µ-law)
Coder offset decision
value, Xn
GX step size
GR step size
PSRR (V
image frequency
Group delay
PCLK ≥ 1.53 MHz
PCLK ≤ 1.03 MHz
Item
CC
)
Table 6. ASLAC Device Transmission and Signaling Specifications
Input: 1014 Hz, –10 dBm0
RG = AR = AX = GR = GX = 0 dB,
AISN, R, X, B, and Z filters disabled
T
T
T
T
T
T
T
A-D
D-A
DD Input: 1014 Hz, –10 dBm0
RG = AR = AX = GR = GX = 0 dB,
AISN, R, X, B, and Z filters disabled
T
T
AX = 0 dB
AR = 0 dB
A-D (PCM output)
D-A (V
AX = 0 dB
AR = 0 dB
A-D (PCM output), GX = +8 dB
D-A (2 wire), GR = –8 dB
A-D, Input signal = 0 V, A-law
0 ≤ GX < 10 dB
10 ≤ GX ≤ 12 dB
–12 ≤ GR ≤ 0 dB
Input: 4800 to 7800 Hz
200 mV p-p
Measure 8000 Hz input frequency
A-D
D-A
1014 Hz; –10 dBm0
B, X, R, and Z filters programmed
with null coefficients
A
A
A
A
A
A
A
A
A
= 0°C to 70°C; VCC = 4.75 – 5.25 V
= 0°C to 70°C
= –40°C to 0°C/70°C to 85°C
= 0°C to 70°C
= –40°C to 0°C/70°C to 85°C
= 70°C
= –40°C to 0°C/70°C to 85°C
= 0°C to 70°C
= –40°C to 0°C/70°C to 85°C
OUT
AX + GX
AR + GR
)
Condition
ASLIC/ASLAC Products
–0.25
–0.25
–0.20
–0.25
Min
–0.30
–0.30
–0.34
–0.25
–0.1
–0.1
–0.2
–5
37
37
Typ
+0.1
0
0
0
0
Max
+0.25
+0.30
+0.25
+0.30
+0.20
+0.25
+0.34
+0.50
+0.1
+0.1
+0.4
–68
–78
+16
+12
590
655
0.1
0.3
0.1
+5
dBrnC0
dBm0p
Unit
Bits
dB
dB
dB
µs
Note
4, 14
12
7
6
4
4
19