U4080B Datasheet, PDF (4/15 Pages) TEMIC Semiconductors – Voice-Switched Circuit for Handsfree Operation

U4080B
Electrical Characteristics
V₁₆ = + 7.5 V, V₁₈ = 0.7 V, figure 1, T_amb = 25°C, unless other specified
Parameters
Test Conditions / Pins Symbol Min.
Typ.
Max.
Unit
Supply voltages
Supply current
V₁₆ = 11 V, V₁₈ = 0.7 V
V₁₆ = 11 V, V₁₈ = 1.6 V
Regulated output voltage
x x ^{Line regulation (deviation)}
6.5 V V_I 11 V
Output resistance
I_CC = 3 mA
Dropout voltage
Pin 16 I+
9.0
mA
Pin 16 I+
800
Pin 20 V_CC
4.9
5.4
5.9
V
DV_CC
65
150
mV
R_O
6.0
20
Ω
V₁₆ = 5 V
Output voltage
Output resistance
I_B = 1.7 mA
Attenuators
V_CCSat
80
300
mV
Pin 21 V_B
2.5
2.9
3.3
V
Pin 21 R_O
250
Ω
Receive attenuator gain
f = 1 kHz, R_mode’ V₂₄ = V_B
V₂₇ = 250 mV_rms
Gain range
R to T modes
Idle mode, V₂₇ = 250 V_rms
RECO voltage (R mode)
Delta RECO voltage
RECO sink current
(R mode)
Pin 26, 27 G_R
2.0
6.0
10
dB
DG_R
40
44
48
dB
G_RI
–20
–16
–12
dB
V_RECO
1.8
2.3
3.2
V
DV_RECO
100
mV
I_RECOL
75
mA
RECO source current
(R mode)
I_RECOH
1.0
3.0
mA
RECI input resistance
Volume control range
x x ^{(R attenuator gain, R mode)}
0.6 V_B V24 V_B
Transmit attenuator gain
R_RECI
3.5
5.0
8.0
kΩ
V_CR
24.5
22.5
32.5
dB
Pins 3 and 4
f = 1 kHz, T_mode’
V₃ = 250 mV_rms
Gain range T to R mode
Idle mode, V₃ = 250 mV_rms
TO voltage (T mode)
Delta TO voltage
switch from T to R mode
TO sink current, T mode
TO source current, T mode
TI input resistance
G_T
4.0
6.0
8.0
dB
DG_T
40
44
48
dB
G_TI
–16.5
–13
–8.5
dB
V_TO
1.8
2.3
3.2
V
DV_TO
100
mV
I_TOL
75
mA
I_TOH
1.0
3.0
mA
R_TI
3.5
5.0
8.0
kΩ
4 (15)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 20-May-96