Sanyo LA1806 Am/fm-if/mpx tuner system for radio-cassette recorders, music center Datasheet

Ordering number: EN3210A
Monolithic Linear IC
LA1806
AM/FM-IF/MPX Tuner System for
Radio-Cassette Recorders, Music Centers
Overview
Package Dimensions
The LA1806 is a characteristics-improved version of the
LA1811, with the same pin assignment and package as those of
the LA1811. Improvements are made on the following points:
Separation (35 dB → 48 dB) and its dependence on
free-running frequency (Refer to the separate catalog of the
LA1805.)
FM main distortion (0.8% → 0.45%)
AM detection output (approximately 5 dB increased)
The constants on five external parts are changed as LA1811
unit : mm
.
3067-DIP24S
[LA1806]
.
.
Functions
. FM-IF: IF amplifier quadrature detector, soft muting, tuning
. MPX: indicator
PLL stereo decoder, stereo indicator, forced
monaural, VCO stop
. AM: RF amplifier, MIX, OSC (with ALC), IF amplifier,
SANYO : DIP24S
detector, AGC, tuning indicator
Features
. FM/AM/MPX functions contained on a single chip
. Minimum number of external parts required
. On-chip FM muting function
. High sensitivity
. Less carrier leak of MPX
Specifications
Maximum Ratings at Ta = 25°C, See specified Test Circuit
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
Pins 3, 7, 8, 11, 20, 21
9
V
Maximum supply current
ICC max
Pins 3 + 20 + 21
50
mA
Flow-in current
(Indicator drive current)
ILED
Pins 7, 8
20
mA
Flow-out current
Allowable power dissipation
I23
Pd max
Pin 23
0.1
mA
Ta%70°C
500
mW
Operating temperature
Topr
–20 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13097HA(II)/N149TA,TS No.3210-1/4
LA1806
Opearating Conditions at Ta = 25°C
Parameter
Symbol
Recommended supply voltage
Conditions
Ratings
VCC
Operating voltage range
VCCop
Unit
4.5
V
3.0 to 8.0
V
* The FM output level forms an N curve (LA1805) and an S curve (LA1806).
LA1805: N curve (for US band)
LA1806: S curve (for Japanese band). Since an output load resistor is connected to pins 9, 10 externally, your desired output
level can be set by varrying the output resistance.
Operating Characteristics at Ta = 25°C, VCC = 4.5 V, See specified Test Circuit.
Parameter
Symbol
Conditions
min
FM characteristics (Mono): fc = 10.7 MHz, fm = 1 kHz
Quiescent current
ICCO
No input
–3 dB sensitivity
–3dBL.S.
Referenced to VIN = 100 dBµ, 100%, down 3 dB
typ
max
Unit
13
20
mA
28
35
dBµ
V0
VIN = 100 dBµ, 100% mod.
154
226
308
mV
Channel balance
C.B.
VIN = 100 dBµ, 100% mod.
0
0
1.5
dB
Total harmonic distortion
THD
VIN = 100 dBµ, 100% mod.
0.45
1.2
Signal to noise ratio
S/N
VIN = 100 dBµ, 100% mod.
70
80
LED ON sensitivity
VLED
IL = 1 mA
23
33
Demodulation output
FM Characteristics (Stereo) : fc = 10.7 MHz, fm = 1 kHz, L + R = 90%, pilot = 10%, VIN = 100 dBµ
Separation
Sep
Stereo distortion
32
THD (MAIN)
LED ON level
VLED-on
LED OFF level
VLED-off
2.4
%
dB
43
48
dBµ
dB
0.45
1.2
%
3.9
5.4
%
2.7
%
AM Characteristics: fc = 1000 kHz, fm = 1 kHz
Quiescent current
Detection output
Signal to noise ratio
Total harmonic distortion
LED ON sensitivity
ICCO
No input
9.5
14.5
mA
VO 1
VIN = 23 dBµ, 30% mod.
29
54
97
mV
V O2
VIN = 80 dBµ, 30% mod.
78
126
193
mV
S/N1
VIN = 23 dBµ, 30% mod.
17
21
dB
S/N2
VIN = 80 dBµ, 30% mod.
50
55
dB
THD1
VIN = 80 dBµ, 30% mod.
0.45
1.2
%
THD2
VIN = 100 dBµ, 30% mod.
0.6
1.5
%
VLED
IL = 1 mA
Note : Be fully careful of dielectric breakdown.
24
32
dBµ
16
Note : For further details, refer to the separate catalog of the LA1805.
No.3210-2/4
LA1806
Equivalent Circuit Block Diagram
★:Not required for the LA1805
Unit (resistance: Ω)
No.3210-3/4
LA1806
Test Circuit
x
Polystyrene film capacitor
Note: The constants of parts *1 to *5 are changed from those
of the LA1811.
★ :Not required for the LA1805
Unit (resistance: Ω ,capacitance: F)
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of January, 1997. Specifications and information herein are subject to change without notice.
No.3210-4/4
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