U3761MB-T ATMEL [ATMEL Corporation], U3761MB-T Datasheet - Page 21

• Manufacturer Part Number: U3761MB-T
• Description: Universal Telephone IC - All Functions Integrated
• Manufacturer: ATMEL [ATMEL Corporation]

Electrical Characteristics: Speech Circuit (Continued)
Reference point pin GND, f = 1000 Hz, 0 dBm = 775 mV
to "Basic Test Circuit". CLIM = GND
DC Characteristics Dialer
V
4744A–CORD–09/03
Parameters
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
Note: Output must be limited
externally to 5.5 V maximum
Available current for peripherals
Transmit
Maximum output voltage swing at
line
Mute suppression transmit with
privacy function
Parameters
Memory retention current
Data retention voltage
DTMF distortion
DP output sink current
Keyboard input drive current
Keyboard input sink current
Key on resistance
Key off resistance
Mask sink/drive current
Earth sink/drive current
DD
= 2.7 V, f
OSC
= 3.58 MHz, all outputs unloaded, S9 closed; HKS = 1
Test Conditions
I
I
R
T
I
I
I
I
I
series, d £ 2%
I
68 nF + 100 W
I
I
I
I
Test Conditions
HKS = 0, V
R
V
V
V
L
L
L
L
L
L
L
L
L
L
L
L
amb
PO
I
I
AGC
L
³ 20 mA
³ 20 mA, Z
³ 20 mA
= 20 to 60 mA
= 20 mA
= 73 mA
= 73 mA
= 40 mA, V
³ 20 mA dialing mode
³ 20 mA dialing mode
= 20 mA, V
= 20 mA
= 0 V
= 2.7 V
= 5 k W
= 0.5 V
= -10 to +60 ° C
= infinite
DD
ear
gen
MIC
= 1.0 V
= 68 nF, 100 W in
= 4 V
= 50 mV
rms
rms
, R
, Z
rms
DC
ear
=
= 39 W /1 W, T
Symbol
Symbol
G
V
I
V
R
I
R
M
D G
D G
DG
e
G
V
V
I
G
RECO
I
L max
SPRIV
I
I
I
KOFF
n
DD
MR
KON
PL
KD
KS
H/L
d
RM
ear
DD
H/L
R
i
amb
R
R
R
= 25°C, unless otherwise specified, refer
Min.
Min.
-0.5
-0.3
150
100
0.8
1.3
2.0
0.5
0.5
0.5
24
60
-7
3
-77.5
Typ.
Typ.
500
-30
0.9
1.6
3.4
0.5
29
20
-6
U3761MB-T
Max.
Max.
-4.7
0.5
0.7
-71
2.5
6.3
0.1
-23
34
5
4
5
dBm
Unit
Unit
V
V
Vpp
mA
mA
mA
dB
dB
dB
dB
dB
µA
dB
µA
dB
µA
µA
k W
k W
V
V
rms
rms
21