U4091BM-N Datasheet, PDF (29/38 Pages) ATMEL Corporation – PROGRAMMABLE TELEPHONE AUDIO PROCESSOR

U4091BM-N
Absolute Maximum Ratings
Parameters
Symbol
Value
Unit
Line current
I_L
140
mA
DC line voltage
V_L
12
V
Maximum input current
I_RING
15
mA
Junction temperature
T_j
125
°C
Ambient temperature
T_amb
-25 to +75
°C
Storage temperature
T_stg
-55 to +150
°C
Total power dissipation, T_amb = 60° C
P_tot
0.9
W
Thermal Resistance
Parameters
Junction ambient SSO44
Symbol
R_thJA
Value
70
Unit
K/W
Electrical Characteristics
f = 1 kHz, 0 dBm = 775 mV_rms, IVMIC = 0.3 mA, IMP = 3 mA, R_DC = 1.3 MΩ, T_amb = 25°C, Z_ear = 68 nF + 100 Ω,
RLS = 50 Ω, Z_M = 68 nF, resonator: f = 3.58 MHz, all bits in reset condition, unless otherwise specified.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
DC Characteristics
DC voltage drop-over circuit
I_L = 2 mA
I_L = 14 mA
I_L = 60 mA
V_L
I_L = 100 mA
Transmission Amplifier, I_L = 14 mA, V_MIC = 2 mV, MICG[0:1] = 2, AGATX[0:2] = 7
ERX = ETX = ENMIC = ENSTBAL = I1O1 = I3O3 = 1, (G_T = 48 dB)
Transmit amplification
MICG[0:1] = 2
AGATX[0:2] = 7
G_T
1.6
V
4.4
4.8
5.2
V
7.2
V
8.6
9.2
9.8
V
45.3
46.5
47.7
dB
Frequency response
due to internal filters
I_L ≥ 14 mA,
f = 1 kHz to 3.4 kHz
∆G_T
-1
0
dB
Gain change with current
Gain deviation
CMRR of microphone amplifier
I_L = 14 mA to 100 mA
T_amb = -10° C to +60° C
∆G_T
±0.5
dB
∆G_T
±0.5
dB
CMRR
60
80
dB
Input resistance of MIC amplifier
Input resistance of MIC3 amplifier
Gain difference
between MIC1, MIC2 to MIC3
MICHF = 1
MICHF = 1
R_i
50
kΩ
R_i
75
150
300
kΩ
∆G_T
±0.4
dB
Distortion at line
Maximum output voltage
I_L ≥ 14 mA, V_L = 700 mV_rms
I_L ≥ 19 mA, d < 5%, V_MIC = 10 mV
CTXA = 1 µF, DBM5 = 0
d_t
V_Lmax
2
%
1.8
3.0
4.2
dBm
Note:
DBM5 = 1
V_Lmax
4.8
6.0
6.6
dBm
V_MIC = 20 mV, MICG[0:1] = 3
V_MICOmax
-4.2
dBm
1. This is a space of time where the bus must be from data transmission and before a new transmission can be started
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