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

U4089B-P
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.
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
Receiving amplification
RGR = 62 kΩ
RGR = 22 kΩ
G_R
-7.75
-7
-6.25
1.5
Amplification of DTMF signal
from DTMF IN to RECO
Frequency response
I_L ≥ 14 mA
V_MUTX = V_MP
I_L > 14 mA,
f = 300 Hz to 3400 Hz
G_RM
1
4
7
∆G_RF
± 0.5
Gain change with current
Gain deviation
Ear protection
MUTE suppression
DTMF operation
Output voltage d ≤ 2%
Maximum output current
d ≤ 2%
I_L = 14 to 100 mA
T_amb = -10 to +60°C
I_L ≥ 14 mA
V_GEN = 11 V_rms
I_L ≥ 14 mA
V_MUTX = V_MP
I_L = 14 mA
Z_ear = 68 nF
Z_ear = 100 Ω
∆G_R
∆G_R
EP
∆G_R
60
0.5
4
± 0.5
± 0.5
1.1
Receiving noise
psophometrically weighted
Output resistance
Line-loss compensation
AC impedance
Gain at low operating
current
Z_ear = 68 nF + 100 Ω
I_L ≥ 14 mA
Output against GND
RAGA = 20 kΩ,
I_L = 100 mA
I_L = 10 mA
I_MP = 1 mA
I_M = 300 µA
V_GEN = 560 mV
RDC = 68 kΩ
n_i
R_o
∆G_RI
Z_imp
G_R
-80
-77
10
-7.0
-6.0
-5.0
840
900
960
-8
-7
-6
Distortion at low operating
I_L = 10 mA
current
I_MP = 1 mA
V_GEN = 560 mV
d_R
5
RDC = 68 kΩ
Speaker Amplifier
Minimum line current for
operation
No AC signal
I_Lmin
15
Input resistance
23
14
22
Gain from SAI to SAO
V_SAI = 3 mV,
I_L = 15 mA,
RGSA = 560 kΩ
RGSA = 20 kΩ
G_SA
35.5
36.5
37.5
-3
Unit
dB
dB
dB
dB
dB
dB
Vrms
dB
V_rms
mA
(peak)
dBmp
Ω
dB
Ω
dB
%
mA
kΩ
dB
dB
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4518A–CORD–05/02