LA8518NM Datasheet, PDF (3/31 Pages) Sanyo Semicon Device – Signal Processor for Cordless Telephone Base Sets

LA8518NM
Continued from preceding page.
Parameter
Transmitting gain
Receiving gain
DTMF gain
KT gain
Transmitting dynamic range
Receiving dynamic range
(Single R_L = 150 Ω)
Receiving dynamic range
(BTL R_L = 3 kΩ)
MUTE high-level input voltage
MUTE low-level input voltage
Transmitting PADC attenuation
Receiving PADC attenuation
Internal reference voltage
Symbol
G_T
G_R
G_MF
G_KT
DR_T
DR_DR
DR_SR
V_IH
V_IL
∆G_T
∆G_R
V_REF
Conditions
I_L = 20 mA, V_IN = –55 dBV
I_L = 120 mA, V_IN = –55 dBV
I_L = 20 mA, V_IN = –20 dBV
I_L = 120 mA, V_IN = –20 dBV
I_L = 20 mA, V_IN = –30 dBV
I_L = 120 mA, V_IN = –30 dBV
I_L = 20 mA, V_IN = –40 dBV
I_L = 120 mA, V_IN = –40 dBV
I_L = 20 mA, THD = 4 %
I_L = 120 mA, THD = 4 %
I_L = 20 mA, THD = 10%
I_L = 120 mA, THD = 10%
I_L = 20 mA, THD = 10%
I_L = 120 mA, THD = 10%
I_L = 20 mA to 120 mA
I_L = 20 mA to 120 mA
I_L = 30 mA, ground at 24 kΩ
I_L = 30 mA, ground at 24 kΩ
I_L = 20 mA
I_L = 50 mA
I_L = 120 mA
Operating Characteristics at Ta = 25°C, f = 1 kHz
Parameter
Symbol
[Audio Signal Processing Block]
PRE AMP Input from crosspoint switch
Voltage gain
Total harmonic distortion
VG_C
THD
ALC saturation output level
ALC range
V_OS
ALCW
Equivalent input noise voltage
V_NI
PB AMP
Voltage gain
Total harmonic distortion
VG_E
THD
Equivalent input noise voltage
V_NI
OGM AMP
Voltage gain
Total harmonic distortion
VG_G
THD
REC AMP
Voltage gain
Output bias voltage
(Voltage at pin 21)
VG_R
V_B
Total harmonic distortion
THD
MIC AMP
Voltage gain
Total harmonic distortion
VG_M
THD
Equivalent input noise voltage
POWER AMP R_L = 8 Ω
Voltage gain
Output voltage
Total harmonic distortion
V_NI
VG_P
P_O
THD
Input resistance
Ripple rejection ratio
R_IN
SVRR
Output noise voltage
V_NO
Conditions
–45 dBV input
–20 dBV input
–20 dBV input
From when ALC is on until THD is 1%
Input AC-shorted, 20 to 20 kHz
–60 dBV input
–60 dBV input
Pin AC-shorted, 20 to 20 kHz
–20 dBV input
–20 dBV input
Pin 20 Z_AC = 8.1 kΩ, between pins 25 and 21
Pin 20 Z_DC = 15 kΩ,
pin 21 load = 8.2 kΩ
–40 dBV input
–40 dBV input
Pin 33 AC-shorted, 20 to 20 kHz
–30 dBV input
THD = 10%
–30 dBV input
Rg = 0, fr = 100 Hz, Vr = –20 dBV
Pin 42 AC-shorted, 20 to 20 kHz
min typ max Unit
42 44 46 dB
39 41 43 dB
–4.5 −2.5 –0.5 dB
–9 –7 –5 dB
27 29 31 dB
24 26 28 dB
6.7 8.7 10.7 dB
9 11 13 dB
2.5
Vp-p
4.5
Vp-p
0.3
Vp-p
0.5
Vp-p
2
Vp-p
6
Vp-p
0.6VSP
V
0
0.4 V
3.7
dB
6.3
dB
0.65
V
1.0
V
1.7
V
min typ max Unit
6
8 10 dB
0.4 1.0 %
90 110 130 mVrms
15
dB
5.0 10 µVrms
46.5 48.5 50.5 dB
0.5 1.5 %
5.0 10 µVrms
7
9
11 dB
0.1 1.0 %
4
6
8 dB
0.8 1.0 1.2 V
0.8 1.5 %
27 29 31 dB
0.1 1.0 %
2.0
5 µVrms
28 30
200 250
0.6
15
40
0.04
32 dB
mW
1.5 %
kΩ
dB
0.1 µVrms
Continued on next page.
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