U4082B Datasheet, PDF (15/30 Pages) ATMEL Corporation – Low-voltage Voice-switched IC for Hands-free Operation

U4082B
6. Electrical Characteristics (Continued)
T_amb = +25°C, V_S = 5.0 V, CD ≤0.8 V, unless otherwise specified
Parameters
Test Conditions
Transmit attenuator gain
f = 1 kHz
T mode, TI = 150 mVrms
Idle mode, TI = 150 mVrms
Range T to R mode
TO DC voltage
T Mode
TO DC voltage
T to R Mode
TO high voltage
TO low voltage
TI input resistance
I_O = –1.0 mA, TI = V_B + 1.5V
I_O = + 1.0 mA
TI = V_B – 1.0V
output measured with respect to V_B
TI < 350 mVrms
Gain tracking
Attenuator Control
G_R + G_T, at T, Idle, R
C_T voltage
Pin 14 – V_B
R mode, V_CI = V_B
Idle mode
T mode
C_T source current
C_T sink current
C_T slow idle current
C_T fast idle internal resistance
VCI input current
R mode
T mode
Dial tone detector threshold
Microphone Amplifier V_MUTE < 0.8V, G_VCL = 31 dB
Output offset
V_MICO – V_B
Feedback R = 180 kΩ
Open loop gain
f < 100Hz
Gain bandwidth
Output high voltage
Output low voltage
Input bias current (MIC)
I_O= –1.0 mA, V_S = 5.0V
I_O = +1.0 mA
Muting (∆ gain)
f = 1 kHz, V_MUTE = 2.0V
300Hz < f < 10 kHz
MUTE input resistance
MUTE input high
V_S = V_MUTE = 6.5V
MUTE input low
Distortion
300Hz < f < 10 kHz
Hybrid Amplifiers
HTO– Offset
HTO to HTO+ Offset
V_HTO – V_B, Feedback R = 51 kΩ
Feedback R = 51 kΩ
Open loop gain
HTI to HTO–, f < 100Hz
Gain bandwidth
Symbol
G_T
G_TI
G_TI
V_TO
V_TO
V_TOH
V_TOL
R_TI
G_TR
V_CT
I_CTR
I_CTT
I_CTS
R_FI
I_VCI
V_DT
MICO
V_OS
G_VOLM
GBW_M
V_MICOH
V_MICOL
I_BM
G
G
R_MUTE
V_MUTEH
V_MUTEL
THD_M
H_VOS
HB_VOS
G_VOLH
GB
Min.
Typ.
Max.
Unit
+4.0
–22.0
+6.0
–20.0
+8.0
–17.0
dB
49.0
52.0
54.0
V_B
V
±100 ±150.0 mV
3.7
V
–1.5
–1.0
V
7.0
10.0
14.0
kΩ
±0.1
dB
+240.0
0.0
mV
–240.0
–85.0 –60.0 –40.0
µA
+40.0 +60.0 +85.0
µA
0.0
µA
1.5
2.0
3.6
kΩ
–60.0
nA
10.0
15.0
20.0
mV
–50.0
70.0
3.7
–55.0
50.0
2.0
0.0
0.0
80.0
1.0
–40.0
–68.0
90.0
0.15
+50.0
200.0
V_S
0.8
mV
dB
MHz
V
mV
nA
dB
dB
kΩ
V
V
%
–20.0
0.0
+20.0
mV
–30.0
0.0
+30.0
mV
60.0
80.0
dB
1.0
MHz
15
4743D–CORD–03/06