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Sanyo Electric Components Datasheet

LA1145M Datasheet

FM IF System

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LA1145M pdf
Ordering number: ENN 2725B
Monolithic Linear IC
LA1145, 1145M
FM IF System (Quadrature Detector) for Car Radio
Features
1. On-chip IF count buffer circuit and microprocessor-
controlled switch circuit for ETR.
2. Compared to the LA1140, the LA1145, 1145M offer:
1 Improved signal meter output linearity;
2 Improved band mute temperature stability;
3 Improved S/N ratio;
4 Improved sound quality at weak signal input when
noise is present, and;
5 Improved AMR characteristics during weak signal
input.
3. Reduced parts’ count simplifies design:
1 On-chip IF count buffer circuit;
2 On-chip SD circuit — sensitivity can be set
independently of soft mute characteristics, and;
3 Variable S-meter gradient — three pin S-meter output
(pins 5, 16 and 17) facilitates independent control of
SNC and HCC.
Package Dimensions
unit : mm
3115-SIP18Z
[LA1145]
24.2
3.25
1
1.305
2.54
2.54
1.27
unit : mm
3036C-MFP20
20
18
0.5 0.25
2.54
SANYO : SIP18Z
[LA1145M]
11
1 10
12.5 0.15
0.35 1.27 (0.4)
SANYO: MFP20
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
20802TN(II)/93097HA(II)/3132TS/2118TA No.2725-1/17


Sanyo Electric Components Datasheet

LA1145M Datasheet

FM IF System

No Preview Available !

LA1145M pdf
LA1145, 1145M
Specifications
[LA1145]
Maximum Ratings at Ta = 25 °C
Parameter
Maximum supply voltage
Maximum supply current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
ICC max
Pd max
Topr
Tstg
Pin 12
Pin 12
Ta = 65 °C
Ta = 70°C
Conditions
Operating Conditions at Ta = 25 °C
Parameter
Recommended supply voltage
Operating voltage range
Symbol
VCC
VCC op
Conditions
Operating Characteristics at Ta = 25°C,VCC = 8 V, fin = 10.7 MHz
Parameter
Quiescent current
Current drain
Demodulation output
Total harmonic distortion
Signal-to-noise ratio
Input limiting voltage
Muting sensitivity
Muting bandwidth
Muting attenuation
Signal strength indication output
Muting drive output
AM rejection ratio
Offset voltage
SD sensitivity
IF count output level
Symbol
ICCO
ICC
VO
THD
S/N
VIN (lim)
VIN (mute)
BW(mute)
mute(1)
mute(2)
V16-0
V16-50
V16-70
V16-100
V15-0
V15-100
AMR
V7-11
V8-11
VSD
VIN (IF)
Conditions
VIN = 0 dBμ
VIN = 100 dBμ
VIN = 100 dBμ, 400 Hz tone, 100%
VIN = 100 dBμ, 400 Hz tone, 100%,
single tuning coil
VIN = 100 dBμ, 400 Hz tone, 100%
400 Hz tone, 100%, soft mute ON
V15 = 2 V
VIN = 100 dBμ, V18 % 0.3 V
VIN = 100 dBμ, V15 = 2 V,
400 Hz tone, 100%
VIN = 100 dBμ, V15 = 4 V,
400Hz tone, 100%
VIN = 0 dBμ, RA = 10 kΩ, pin 16
VIN = 50 dBμ, RA = 10 kΩ, pin 16
VIN = 70 dBμ, RA = 10 kΩ, pin 16
VIN = 100 dBμ, RA = 10 kΩ, pin 16
VIN = 0 dBμ, pin 15
VIN = 100 dBμ, pin 15
VIN = 100 dBμ, 1 kHz tone, 30% AM
VIN = 0 dBμ, pins 7 to 11
VIN = 0 dBμ, pin 8 to 11
Pin 18
VIN = 100 dBμ, pin 13, CL = 10 pF
[LA1145M]
Maximum Ratings at Ta = 25 °C
Parameter
Maximum supply voltage
Maximum supply current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
ICC max
Pd max
Topr
Tstg
Conditions
Pin 13
Pin 13
Ta = 70°C, mounted on PC board,
independent IC
Ta = 25°C, mounted on PC board,
Independent IC
Ratings
14
45
630
590
–20 to +70
–40 to +150
Unit
V
mA
mW
mW
°C
°C
Ratings
8
7.5 to 14
Unit
V
V
min
18
20
300
79
34
30
140
10
typ
26
29
400
0.3
85
40
36
190
15
max Unit
36 mA
36 mA
520 mVrms
0.8 %
dB
46 dBμ
42 dBμ
280 kHz
20 dB
25 29
33 dB
0 0.1
0.4 V
1.4 2.3
3.2 V
2.5 4.5
5.5 V
5.0 5.5
6.0 V
4.0 4.8
5.5 V
0 0 0.3 dB
57 70
dB
–0.25
0 +0.25 V
–0.5 0 +0.5 V
50 58
66 dBμ
110 180 280 mVrms
Ratings
14
45
630
630
–20 to +70
–40 to +125
Unit
V
mA
mW
mW
°C
°C
No. 2725-2/17


Part Number LA1145M
Description FM IF System
Maker Sanyo
Total Page 17 Pages
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