LA2806M Datasheet, PDF (2/11 Pages) Sanyo Semicon Device – Signal Processor and Power Amplifier IC for Telephone Answering Machines

LA2806M
Operating Conditions at Ta = 25°C
Parameter
Recomended supply voltage
Operating supply voltage range
Recommended load resistance
Preamplifier input voltage
Symbol
V_CC, P.V_CC
V_CC op, P.V_CC op
R_L
V_IN
Conditions
Power amplifier
Operating Characteristics at Ta = 25°C, V_CC = 5 V, f = 1 kHz
Parameter
Quiescent current
[Preamplifier]
Voltage gain
Total harmonic distortion
ALC turnover input voltage
ALC output saturation voltage
Equivalent input noise voltage
ALC range
[Playback equalizer amplifier]
Voltage gain
Total harmonic distortion
Equivalent input noise voltage
[Recording amplifier]
Voltage gain
Output bias voltage
Total harmonic distortion
[LINE amplifier]: R_L = 1 kΩ
Voltage gain
Maximum output voltage
Symbol
I_CC
Conditions
VG_C
THD
V_ALC
V_OS
V_NI
ALC W
–70 dBV input, measured between pins
5 and 8
–40 dBV input, measured between pins
5 and 8
Measured between pins 5 and 8
–40 dBV input, measured between pins
5 and 8
Input short circuited (internal 2.2 kΩ
resistance)
From ALC ON to THD = 1 %
VG_E
THD
V_NI
–70 dBV input, measured between pins
2 and 8
–60 dBV input, measured between pins
2 and 8
Input short circuited (internal 2.2 kΩ
resistance), Flat
VG_R
V_B
THD
50 kΩ impedance connected to pin 1
Z_AC, measured between pins 10 and 2
100 kΩ resistance connected to pin 1
Z_DC, measured on pin 2
–40 dBV preamplifier input
VG_L
V_O max
Measured between pins 10 and 22
Measured between pins 10 and 22,
THD = 1 %
min
57
–68
400
40
57
–7.0
0.4
–1
0.6
Total harmonic distortion
THD
[Power amplifier]: R_L = 8 kΩ, input pin 20
Voltage gain
VG_P
Output voltage
P_O
–40 dBV preamplifier input
–30 dBV input, measured between pins
20 and 17
THD = 10 %
Total harmonic distortion
THD P_O = 100 mW
Input resistance
r_i
Ripple rejection ratio
SVRR Rg = 0, f_r = 100 Hz, V_CCr = –20 dBV
Output noise voltage
V_NO Input short circuited, Flat
[Voice-operated switch] Pin 25, R = 20 kΩ applied 5 V.
Sensitivity
Output ON voltage
V_OXL
V_OXH
V sat
–23 dBV input, f = 800 Hz
–27 dBV input, f = 800 Hz
2 V supplied to pin24
[Control pin voltage]
Pin 26 to 30
Pin 24 (MUTE)
[V_REF]
Output voltage
V_H Input high-level voltage
V_L
Input low-level voltage
V_H
Input high-level voltage, supplied via
diode
V_REF
26
0.2
10
40
4.5
1.5 (or
V_CC + 0.3)
0
1.5
2.05
Ratings
5
4.5 to 7.5
8
0 to 1.0
Unit
V
V
Ω
Vp-p
typ
max
Unit
10
15
mA
59
61
dB
0.5
1.0
%
–64
–60 dBV
500
625 mVrms
1.5
5.0 µVrms
45
dB
59
61
dB
0.5
1.5
%
1.5
5.0 µVrms
–4.0
–1.0
dB
0.8
1.2
V
0.5
1.0
%
0
+1
dB
Vrms
0.5
1.0
%
28
30
dB
0.25
W
0.5
1.0
%
15
20
kΩ
50
dB
0.1
0.5 mVrms
0.3
V
5.0
V
0.3
V
V
0.8
V
V_CC–0.7
V
2.25
2.45
V
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