u3762mb ETC-unknow, u3762mb Datasheet - Page 17

• Manufacturer Part Number: u3762mb
• Description: Universal Telephone Functions Integrated
• Manufacturer: ETC-unknow

Rev. A1, 15-Sep-98
Electrical Characteristics Speech Circuit
Reference point Pin GND, f = 1000 Hz, 0 dBm = 775 mV
refer to “Basic Test Circuit”.
*
Line voltage
Transmit and sidetone
Input resistance
Gain
Gain change with current
Gain deviation
Line-loss compensation
Max. output voltage at line
Noise at line weighted
psophometrically
Sidetone reduction
DTMF amplifier
Volume range d < 5%
DTMF output level low
frequency group
Pre-emphasis between
high- and low-level
frequency group
Receiving amplifier
Gain
Gain change with current
Gain deviation
Line-loss compensation
Receiving noise at
earphone weighted
psophometrially
Gain change when muted
Output voltage push-pull
Ear protection differential
Supply voltage (for internal use only)
Output voltage *
Available current for
peripherals
Distortion at line
Maximum output voltage
swing at line
Mute suppression transmit
with privacy function
V
L
= 0.775 V
Output must be limited externally to max. 5.5 V
Parameters
rms
I
I
I
I
R
I
I
R
T
I
R
I
CLIM = 2.2
I
I
Single tone, I
I
P
S5 = closed
I
I
R
T
I
I
I
I
I
100
I
Z
I
I
I
I
V
I
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
amb
PRE
amb
ear
i
AGC
AGC
AGC
MIC
y
= 8 mA
= 73 mA
y
y
= 20 mA
= 100 mA
= 20 mA, S5 = open
= 20 to 60 mA
= 20 mA
= 20 mA, V
> 20 mA, G
= 20 mA, S5 = closed
w
= 20 to 60 mA
= 20 mA
= 73 mA
= 73 mA
= 40 mA, V
y
y
= 20 mA, S5 = open
= 20 mA,
= 20 mA
Test Conditions / Pin
W
= 68 nF + 100
20 mA
= –10 to +60 C
= P
= –10 to +60 C
Preliminary Information
20 mA
20 mA, Z
20 mA
20 mA dialing mode
20 mA dialing mode
= 50 mV
= infinite
= 12 k
= infinite
in series, d 2%
HLG
m
W
L
– P
F, S
mic
S
gen
, I
rms
w
ear
= 48dB
L
LLG,
1
= 4 V
= 10 mV,
20 mA
= 68 nF,
= 73 mA
= open
W
rms,
rms
R
DC
,
= 39
Symbol
G
V
V
V
G
P
D
D
D
G
V
D
D
D
V
SPRIV
RECO
I
G
L max
V
Lmax
V
V
G
R
n
PRE
DD
STA
n
d
G
G
G
RM
G
G
DD
G
ear
o
L
L
L
R
i
t
i
s
/ 1 W, T
S
S
R
R
R
s
amb
Min.
– 4.8
– 4.7
46.8
–0.5
–0.5
–0.5
–0.3
150
3.6
5.9
6.9
1.3
0.8
1.3
2.0
45
10
–8
24
60
1
3
= 25 C, unless otherwise specified,
– 77.5
Typ.
3.85
6.55
47.8
1.4
1.2
0.9
1.6
3.4
80
–6
15
– 6
29
U3762MB
Max.
48.8
– 72
– 71
120
4.1
7.2
8.2
0.5
0.5
0.5
0.7
2.5
6.3
– 7
– 7
20
–4
34
3
5
2
4
dBmp
dBm
dBm
dBm
dBm
V
V
Unit
17 (23)
Vpp
k
m
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
V
%
rms
rms
A