U4090B-P Datasheet, PDF (17/35 Pages) ATMEL Corporation – Monolithic Integrated Feature Phone Circuit EMI Improved

U4090B-P
6. 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 31 open, V_IMPSEL = GND, V_MUTX = GND, V_MUTR = GND, unless otherwise specified.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Gain deviation with current
I_L = 15 to 100 mA
∆G_D
AFS Acoustic Feedback Suppression
±0.5
Adjustment range of attenuation
I_L ≥ 15 mA
Attenuation of transmit gain
I_L ≥ 15 mA
I_INLDT = 0 µA
R_ATAFS = 30 kΩ
I_INLDR = 10 µA
Attenuation of speaker amplifier
I_L ≥ 15 mA
I_INLDP = 0 µA
R_ATAFS = 30 kΩ
I_INLDR = 10 µA
AFS disable
I_L ≥ 15 mA
Supply Voltages, V_MIC = 25 mV, T_amb = –10 to +60°C
I_L = 14 mA
V_MP
RDC = 68 kΩ
I_MP = 2 mA
V_MPS
I_L = 100 mA
RDC = infinite
I_MP = 0 mA
I_L ≥ 14 mA
V_M
I_M = 700 µA
RDC = 130 kΩ
0
50
∆G_T
45
∆G_SA
50
V_ATAFS
1.5
V_MP
V_MPS
V_M
3.1
3.3
3.5
6.7
1.3
3.3
V_B
I_B = 20 mA
I_L = 0 mA
Ringing Power Converter, IMP = 1 mA, IM = 0
V_B
7
7.6
Maximum output power
Threshold of ring frequency detector
Input impedance
Input impedance in speech mode
Logic level of frequency detector
Ring detector enable
Zener diode voltage
MUTR Input
V_RING = 20.6V
RFDO: low to high
V_HYST = V_RINGON – V_RINGOFF
V_RING = 30V
f = 300 Hz to 3400 Hz I_L > 15 mA
V_RING = 20V + 1.5V_rms
V_RING = 0V
V_B = 4V
V_RING = 25V
V_RING = 25V, RFDO high
I_RING = 25 mA
P_SA
V_RINGON
V_HYST
R_RING
R_RINGSP
V_RFDO
V_MPON
V_RINGmax
4
150
1.8
30.8
20
17.5
11.0
5
0
V_MP
2.0
6
2.2
33.3
MUTR input current
MUTR input voltage
V_MUTR = GND
I_L > 14 mA
V_MUTR = V_MP
Mute low; I_L > 14 mA
Mute high; I_L > 14 mA
I_MUTE
–20
–30
+10
V_MUTE
0.3
V_MUTE
VMP –
0.3V
Unit
dB
dB
dB
dB
V
V
V
V
V
mW
V
kΩ
kΩ
V
V
V
µA
V
V
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4741C–CORD–11/05