LA4145 Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – 0.6 to 0.9 W AF Power Amplifier for Radio Cassette Recorders

Ordering number: EN1339D
Monolithic Linear IC
LA4145
0.6 to 0.9 W AF Power Amplifier
for Radio Cassette Recorders
Features
. _{The LA4145 is especially suited for use in cassette tape}
recorder, radio-cassette, recorder, stereo cassette player
. applications.
0.6 W typ/V_CC = 6.0 V, R_L = 8 Ω, THD = 10%
0.9 W typ/V_CC = 6.0 V, R_L = 4 Ω, THD = 10%
. _{Minimum number of external parts required}
. _{Soft clip}
. _{Small pop noise at VCC ON/OFF mode}
. _{Voltage gain fixed at 50 dB.}
An external resistor can be connected to reduce this value.
Package Dimensions
unit : mm
3017C-SIP9
[LA4145]
SANYO : SIP9
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC max
I_O peak
Pd max
Topr
Tstg
Operating Conditions at Ta = 25°C
Conditions
Quiescent mode
Operating mode R_L = 8 Ω
50 × 50 mm² with PCB
Ratings
Unit
9
V
8
V
500
mA
0.9
W
–20 to +70
°C
–40 to +150
°C
Parameter
Recommended supply voltage
Recommended load resistance
Operating voltage range
Symbol
V_CC
R_L
V_CC
Conditions
Ratings
Unit
6
V
4 to 8
Ω
3.6 to 8
V
Operating Characteristics at Ta = 25°C, V_CC = 6.0 V, R_L = 8 Ω, Rg = 600 Ω, f = 1 kHz
Parameter
Quiescent current
Voltage gain
Output power
Total harmonic distortion
Input resistance
Output noise voltage
Ripple rejection ratio
Symbol
I_CCO
VG
P_O
THD
r_i
V_NO
SVRR
LA4145
Conditions
THD = 10%, R_L = 4 Ω
THD = 10%, R_L = 8 Ω
P_O = 0.1 W
Rg = 10 kΩ, B.P.F. = 20 Hz to 20 kHz
Rg = 0, f_R = 100 Hz, V_R = 150 mV
min typ
10
48 50
0.9
0.45 0.6
0.2
30
0.6
–35 –40
max Unit
20 mA
52 dB
W
W
1.0 %
kΩ
1.2 mV
dB
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53096HA(II)/O217KI/N055MW/4034/N163KI,TS No.1339-1/5