U4089B-P_05 Datasheet, PDF (11/26 Pages) ATMEL Corporation – Monolithic Integrated Feature Phone Circuit

U4089B-P
8. 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 kΩ,
Z_ear = 68 nF + 100Ω, Z_M = 68 nF, Pin 30 open (AGA), V_MUTX = GND, see Figure 8-11 on page 22 (AC tests), unless otherwise specified.
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
Noise at line
psophometrically weighted
Anti-clipping
attack time
release time
I_L > 14 mA
G_T = 48 dB
CTXA = 1 µF
each 3 dB overdrive
n_o
–80
–72
dBmp
0.5
ms
9
ms
Gain at low operating current
Distortion at low operating
current
Line-loss compensation
I_L = 10 mA
I_MP = 1 mA
RDC = 68 kΩ
V_mic = 1 mV
I_M = 300 µA
I_L = 10 mA
I_M = 300 µA
I_MP = 1 mA
RDC = 68 kΩ
V_mic = 10 mV
I_L = 100 mA,
RAGA = 20 kΩ
G_T
40
42.5
dB
d_t
∆G_TI
5
%
–6.4
–5.8
–5.2
dB
Mute suppression
a) MIC muted
(microphone
preamplifier)
I_L ≥ 14 mA
Mutx = open
G_TM
60
80
dB
Receiving Amplifier, I_L = 14 mA, RGR = 62 kΩ, unless otherwise specified, V_GEN = 300 mV
Adjustment range of
receiving gain
I_L ≥ 14 mA,
single ended
G_R
–8
+2
dB
Receiving amplification
RGR = 62 kΩ
RGR = 22 kΩ
G_R
–7.75
–7
1.5
–6.25
dB
Amplification of DTMF signal
from DTMF IN to RECO
Frequency response
I_L ≥ 14 mA
V_MUTX = V_MP
I_L > 14 mA,
f = 300Hz to 3400Hz
G_RM
1
4
7
dB
∆G_RF
±0.5
dB
Gain change with current
Gain deviation
Ear protection
MUTE suppression
DTMF operation
Output voltage d ≤2%
Maximum output current
d ≤2%
I_L = 14 mA to 100 mA
T_amb = –10° C to +60° C
I_L ≥ 14 mA
V_GEN = 11V_rms
I_L ≥ 14 mA
V_MUTX = V_MP
I_L = 14 mA
Z_ear = 68 nF
Z_ear = 100Ω
∆G_R
∆G_R
EP
∆G_R
60
0.5
4
±0.5
±0.5
1.1
dB
dB
V_rms
dB
V_rms
mA
(peak)
Receiving noise
psophometrically weighted
Output resistance
Line-loss compensation
AC impedance
Z_ear = 68 nF + 100Ω
I_L ≥ 14 mA
Output against GND
RAGA = 20 kΩ,
I_L = 100 mA
n_i
R_o
∆G_RI
Z_imp
–80
–77
dBmp
10
Ω
–7.0
–6.0
–5.0
dB
840
900
960
Ω
11
4518C–CORD–10/05