U4089B-P Datasheet, PDF (12/26 Pages) ATMEL Corporation – Monolithic Integrated Feature Phone Circuit

Electrical Characteristics (Continued)
f = 1 kHz, 0 dBm = 775 mV_rms, I_M = 0.3 mA, I_MP = 2 mA, RDC = 130 kΩ, T_amb = 25°C, RGSA = 560 k,
Z_ear = 68 nF + 100 Ω, Z_M = 68 nF, Pin 30 open (AGA), V_MUTX = GND, see Figure 22 (AC tests), unless otherwise specified.
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Output power
Output noise (input SAI
open) psopho-metrically
weighted
Load resistance
R_L = 50 Ω, d < 5%
V_SAI = 20 mV
I_L = 15 mA
I_L = 20 mA
I_L > 15 mA
P_SA
3
7
P_SA
20
n_SA
200
Gain deviation
I_L = 15 mA
T_amb = -10 to +60°C
∆G_SA
±1
Mute suppression
I_L = 15 mA,
V_L = 0 dBm,
V_SAI = 4 mV
V_SAO
-60
Pin 23 open
Gain change with current
Resistor for turning off
speaker amplifier
I_L = 15 to 100 mA
I_L = 15 to 100 mA
∆G_SA
RG_SA
±1
0.8
1.3
2
Gain change with frequency I_L = 15 mA
f = 300 to 3400 Hz
∆G_SA
±0.5
Attack time of anti-clipping 20 dB over drive
t_r
Release time of anti-clipping
t_f
TMF Amplifier Test Conditions: IMP = 2 mA, IM = 0.3 mA, V_MUTX = VMP
Adjustment range of DTMF
gain
I_L = 15 mA
Mute active
G_D
5
80
40
50
DTMF amplification
I_L = 15 mA,
VDTMF = 8 mV
Mute active:
MUTX = VMP
G_D
40.7
41.7
42.7
Gain deviaton
Input resistance
I_L = 15 mA
T_amb = -10 to +60°C
RGT = 27 kΩ,
RGT = 15 kΩ
G_D
±0.5
R_i
60
180
300
26
70
130
Distortion of DTMF signal
I_L ≥ 15 mA
V_L = 0 dBm
Gain deviation with current I_L = 15 to 100 mA
AFS Acousting Feedback Suppression
d_D
∆GD
2
±0.5
Range of attenuation
Attenuation of transmit gain
Attenuation of speaker
amplifier
AFS disable
I_L ≥ 15 mA
I_L ≥ 15 mA,
I_INLDT = 0 µA
R_ATAFS = 30 kΩ
I_INLDR = 10 µA
I_L ≥ 15 mA
I_INLDP = 0 µ
R_ATAFS = 30 kΩ
I_INLDR = 10 µ
I_L ≥ 15 mA
0
50
∆G_T
45
∆G_SA
50
V_ATAFS
1.5
Unit
mW
mW
µV_psoph
dB
dBm
dB
MΩ
dB
ms
ms
dB
dB
dB
kΩ
%
dB
dB
dB
dB
V
12 U4089B-P
4518A–CORD–05/02