SANYO LA1816M, LA1816 Datasheet
Ordering number: EN2659C
Monolithic Linear IC
LA1816, 1816M
Single-Chip AM/FM, MPX Tuner System for Headphone
Stereos, Radio-Cassette Recorders
Functions
.
FM: RF amplifier, MIX, OSC, IF amplifier, quadrature
detector
.
AM: RF amplifier, MIX, OSC, IF amplifier, detector, AGC
.
MPX: PLL stereo decoder, stereo indicator, VCO stop
Features
.
Contains FM tuner, AM tuner, MPX on a single chip.
.
Adjustment-free FM detector and AM IF
.
Minimum number of external parts required
.
Low-voltage operation
.
Low current drain
.
Less carrier leak of MPX (no-input, monaural-input mode)
Package Dimensions
unit : mm
3067-DIP24S
[LA1816]
SANYO : DIP24S
unit : mm
3112-MFP24S
[LA1816M]
Specifications
Maximum Ratings at Ta = 25°C, See specified Test Circuit
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Maximum supply current I
Flow-in current
(Indicator drive current)
Flow-out current I
Allowable power dissipation Pd max Ta % 70°C 350 mW
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –40 to +125 °C
max Pins 8, 9, 11, 18, 20, 22 7 V
CC
max Pins8+18+20+22 50 mA
CC
I
LED
21
Pin 9 10 mA
Pin 21 0.1 mA
SANYO : MFP24S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N3097HA(II)/8099YT/N307TA/N197TA,TS No.2659-1/11
LA1816, 1816M
Operating Conditions at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Operating voltage range V
CC
op 1.8 to 6.0 V
CC
Operating Characteristics at Ta = 25°C , VCC= 3 V, See specified Test Circuit
Parameter Symbol Conditions min typ max Unit
I
(FM) FM mode VIN= 0 8.9 15 mA
Quiescent current
[AM Characteristics] : f
= 1000 kHz, fm= 1 kHz
c
Detection output
Signal to noise ratio
Total harmonic distortion
[FM Characteristics] (F.E.) : f
–3 dB sensitivity –3dBL.S.
Local oscillation voltage V
[FM Characteristics] (IF + MPX, MONO) : f
–3 dB sensitivity –3dBL.S.
Demodulation output V
Channel balance C.B. V
Total harmonic distortion THD (mono) V
Signal to noise ratio S/N V
[FM Characteristics] (IF + MPX, STEREO) : f
Channel separation* Sep 25 34 dB
Total harmonic distortion THD (main) 0.6 2.5 %
LED-ON level V
LED-OFF level V
* Sep = 45 dB (typ) at MPX IN
CCO
I
(AM) AM mode VIN= 0 3.3 5.5 mA
CCO
V
1VIN= 23 dBµ, 30% mod. 12 23 41 mV
O
V
2VIN= 80 dBµ, 30% mod. 48 74 120 mV
O
S/N1 V
S/N2 V
THD1 V
THD2 V
= 98 MHz, fm= 1 kHz
c
OSC
= 10.7 MHz, fm= 1 kHz
c
O
c
LED-ON
LED-OFF
= 23 dBµ, 30% mod. 16 21 dB
IN
= 80 dBµ, 30% mod. 45 52 dB
IN
= 80 dBµ, 30% mod. 0.3 1.3 %
IN
= 107 dBµ, 30% mod. 0.6 2.0 %
IN
Referenced to V
3 dB down
f
= 108.7 MHz 75 110 160 mV
OSC
Referenced to V
3 dB down
= 80 dBµ , 30% mod.,
IN
= 100 dBµ, 100% mod.,
IN
VIN= 100 dBµ, 100% mod. 100 135 200 mV
= 100 dBµ, 100% mod. 0 2.0 dB
IN
= 100 dBµ, 100% mod. 0.7 3.0 %
IN
= 100 dBµ, 100% mod. 70 75 dB
IN
= 10.7 MHz, fm= 1 kHz, L + R = 90%, pilot = 10%, VIN= 100 dBµ
2.0 3.5 5.0 %
3V
12 dBµ
39 46 dBµ
2.7 %
No.2659-2/11
Equivalent Circuit Block Diagram
LA1816, 1816M
Forced monaural when
connected to V
CC
Test Circuit
CDA10.7MG15-A
: Polystyrene film capacitor
L1,SA-026 (Sumida)
L2, YT-40001 (Mitsumi)
L3,HW-50425 (Mitsumi)
Unit (resistance: Ω, capacitance: F)
No.2659-3/11
Coil Specifications
FM
LA1816, 1816M
.
ANT B.P.F
SNY-074-2001 (Sumida)
.
OSC
YT-40001 (Mitsumi)
5.5 mm ø air core, 0.8 mm wire, 3T
AM
.
MW OSC
HW-50425
(Mitsumi)
.
Bar antenna
TYA-8032 (PVC-2LXT-L)
(Mitsumi)
Sample Printed Circuit Pattern
.
RF SA-026(Sumida)
3.5 mm ø air core, 1.0 mm wire, 5T
.
Discriminator
CDA 10.7MG (15) (Murata)
3 – 2 2T
4 – 6 9T Qo ^ 80
2 – 1 86T L = 270 µH
(Terminal assembly position)
1 – 2 21T c 100T
3 – 4 30T
1 – 2 L = 604 µH
Qo ^ 120
Cu-foiled area 85 x 80 mm
No.2659-4/11
2
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