U4089B-MFN ATMEL [ATMEL Corporation], U4089B-MFN Datasheet - Page 13

• Manufacturer Part Number: U4089B-MFN
• Description: MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
• Manufacturer: ATMEL [ATMEL Corporation]

Electrical Characteristics (Continued)
f = 1 kHz, 0 dBm = 775 mV
Z
4570A–CORD–04/03
ear
Parameters
Input resistance
Distortion of DTMF signal
Gain deviation with current
AFS Acousting Feedback Suppression
Range of attenuation
Attenuation of transmit gain
Attenuation of speaker
amplifier
AFS disable
Supply Voltages, V
V
V
V
MUTX Input (see Figure 20)
Input current
Input voltage
MP
M
B
= 68 nF + 100 W, Z
mic
M
= 25 mV, T
= 68 nF, Pin 20 open, V
rms
, I
M
Test Conditions
RGT = 27 kW,
RGT = 15 kW
I
V
I
I
I
I
R
I
I
I
R
I
I
I
RDC = 68 kW
I
I
I
RDC = 130 kW
I
I
V
V
Input high
Input low
= 0.3 mA, I
L
L
L
L
INLDT
INLDR
L
INLDP
INLDR
L
L
MP
L
M
B
L
L
MUTX
MUTX
ATAFS
ATAFS
³ 15 mA
= 15 to 100 mA
³ 15 mA
³ 15 mA,
³ 15 mA
³ 15 mA
= 14 mA,
³ 14 mA,
= 0 mA
= +20 mA,
amb
= 300 µA
= 0 dBm
= 2 mA
= 0 µA
= 0 µ
= 10 µA
= 10 µ
= -10 to +60°C
= V
= GND
= 30 kW
= 30 kW
MP
MP
= 2 mA, RDC = 130 kW, T
MUTX
= GND, unless otherwise specified.
Pin
amb
= 25°C, RGSA = 560 kW,
Symbol
V
V
V
DG
I
I
DGD
DG
V
MUTX
MUTX
ATAFS
V
MUTX
MUTX
V
d
R
MP
D
M
B
SA
i
T
0.3 V
V
Min.
1.5
3.1
1.4
60
26
MP
0
-
Typ.
180
+20
-20
3.3
70
45
50
7
U4089B-M
Max.
±0.5
300
130
+30
-30
3.5
3.3
7.6
0.3
50
2
Unit
kW
dB
dB
dB
dB
µA
µA
%
V
V
V
V
V
V
13