UPD9903GT NEC [NEC], UPD9903GT Datasheet - Page 17

• Manufacturer Part Number: UPD9903GT
• Description: UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
• Manufacturer: NEC [NEC]

3.2 Combined Specifications with the PC7073
DC characteristics
PC7073 (V
PD9903 (T
DC feed resistance
Minimum loop current
Maximum current setting
value
Pin voltage during on-hook
Voltage between lines
during on-hook
Supervisory control
– V
BB
abnormal voltage
Parameter
A
BB
= 0 to 70 ˚C, V
= –42 to –58 V, V
DD
Symbol
R
I
I
V
V
V
V
V
V
LMIN
LMAX
= 5 V
TS
RS
TS
RS
TS
BBF
BF
CC
= 5 V
200
400
V
R
I
I
I
Normal on-hook,
between Tip and GND, V
Normal on-hook,
between Ring and V
On-hook transmission,
between Tip and GND, V
On-hook transmission,
between Ring and V
V
0.25 V, V
LMAX
LMAX
LMAX
BB
L
BB
= 1900
= –51 V
= –48 V
= 76 mA setting
= 45 mA setting
= 35 mA setting
0.25 V, T
feed
feed
DG
= V
Conditions
A
= 0 to 70 ˚C, 18
AG
BB
BB
, V
, V
= 0 V, f
BB
BB
BB
BB
200
400
200
400
= –48 V
= –48 V
= –48 V
= –48 V
DCLK
feed
feed
feed
feed
= 2048 kHz)
I
L
V
BB
MIN.
21.7
18.2
2.25
3.05
2.25
3.05
180
360
70
50
40
31
32
I
– 7.0 V
LMAX
(mA))
BB
TYP.
22.2
18.8
2.55
3.35
2.55
3.35
200
400
76
55
45
35
35
– 5.9 V
BB
MAX.
22.6
19.3
2.85
3.65
2.85
3.65
220
440
82
60
50
39
38
– 5.0
PD9903
Units
mA
mA
V
V
V
17