AM79C202 Legerity, AM79C202 Datasheet - Page 14
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AM79C202
Manufacturer Part Number
AM79C202
Description
(AM79C202 / AM79212) PCM CODEC
Manufacturer
Legerity
Datasheet
1.AM79C202.pdf
(36 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AM79C202JC
Manufacturer:
AMD
Quantity:
20 000
Company:
Part Number:
AM79C202JCT
Manufacturer:
AMD
Quantity:
4 188
PERFORMANCE CHARACTERISTICS (See Note 1)
(See note 1) T
14
No.
10
11
12
13
1
2
3
4
5
6
7
8
9
2-wire loop voltage
Feed resistance per leg
at pins AD and BD
ISUM current
IDIF current
Ternary input voltage boundaries for C2–C1 pins. Mid-
level input source must be high impedance or 3-state
Low boundary
High boundary
Logic inputs C2–C1
Input High current
Input Low current
3-state voltage
Logic inputs C5–C3
Input High voltage
Input Low voltage
Input High current
Input Low current
V
V
β, Ratio of V
voltage:
Thermal shutdown
threshold voltage output
on VDC
Gain from VLBIAS pin to
AD or BD pin
Input resistance to
AGND, VLBIAS pin
ISUM/ILOOP
IDIF/ILONG
β
TX
REF
=
output offset
------------------------------------
VDC VREF
input voltage
VSA VSB
A
= 0°C to 70°C unless otherwise noted.
Item
–
–
DC
to loop
Standby state, R
Active state, RL
IRSN = 140 µA
Disable state, RL
IRSN = 80 µA
Standby state
Standby state, R
Standby state
A to V
B to ground
I
BAL1 pin open
IREF = ±1 mA
Tj < 145°C, V
to V
nected from V
VSA – VSB = 40 V.
I
VLBIAS = 3 V
ILOOP = 10 mA
ILONG = 10 mA
C1
VDC
Table 2. ASLIC Device DC Specifications
= I
REF
= 20 µA
BAT
C2
, 35.7 kΩ resistor con-
Am79212/Am79C202 Data Sheet
Condition
= 1 µA
DC
DC
AD–BD
AD–BD
is referenced
L
L
to V
= 1 Meg Ω
= 1930 Ω
REF
= 600 Ω
= 600 Ω
.
V
BAT
V
0.0253
19.51
11.34
1/333
1/667
Min
CC
–200
–400
35.4
43.4
5.58
130
44.6
–50
0.8
2.0
2.0
4.2
20
– 1.8
– 1
V
V
BAT
0.0242
CC
12.19
1/300
1/600
Typ
21.1
33.3
250
–80
2.1
6.0
56
90
– 0.4
– 1.1
V
BAT
0.0232
Max
22.68
13.04
1/273
1/546
6.42
375
200
200
+50
0.8
3.5
0.8
2.2
40
40
– 0.5
Unit
V/V
V/V
mV
µA
µA
µA
kΩ
Ω
V
V
V
V
V
Note
4
4
4