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LA1136 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 LA1136
기능 AM Tuners for Car Radios and Home Stereos
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LA1136 데이터시트, 핀배열, 회로
Ordering number: EN 3507
Monolithic Linear IC
LA1136N, 1136NM, 1137N, 1137NM
AM Tuners for Car Radios and Home Stereos
Overview
The LA1136N/NM and LA1137N/NM are high-performance
AM electronic tuner ICs offering sophisticated functions. They
are especially suited for use in car radio and home stereo
(antenna: loop) applications.
Functions
. MIX
. OSC (with ALC)
. IF amplifier
. Detector
. AGC (normal)
. RF wide-band AGC
. Auto search stop signal (Signal meter output)
. Local oscillation buffer output
. IF band switching circuit (for LA1136N only)
. IF count buffer
. Stop detector output (can be set independently)
. Tweet prevention circuit
. AGC (RF, IF) time constant switching circuit
. IF AGC circuit
. Pin-diode driver
. AM stereo decoder IF output (for LA1136N only)
. Circuit preventing incorrect seek operation
Features
. Excellent cross modulation characteristic: Meets the
requirements for preventing not only adjacent-channel
interference but also interference caused by all channels
. within broadcast band.
Narrow-band signal meter output: Usable as auto search stop
. signal. Has linearity up to 100 dBµ.
Local oscillation buffer output: Facilitates designing of
. electronic tuner system, frequency display, etc.
OSC (with ALC): Improves tracking error because
oscillation output is stabilized at a low level (350 mVrms:
. LA1137N) for varactor diode.
MIX: Double-balanced differential MIX meeting the
requirements for preventing spurious interference, IF
. interference.
Good characteristic at high input: 130 dBµ input
fm = 400 Hz 80%mod THD = 0.5% typ.
. High S/N: Good S/N at medium input (55 dB typ).
. Usable sensitivity: (S/N = 20 dB input): 25 dBµ
. (when using 2SK715 )
VCC variation compensation: Less variation in gain,
distortion: 8 to 12 V
AM stereo capability (LA1136N only)
. IF band switching circuit on chip; controlled by
. microcontroller
Oscillating circuit for AM stereo; SUB S/N improved to
6 dB
. IF output for AM stereo decoder
. Improved tweet characteristics: 10 dB increase, controlled by
. microcontroller
Improved cross modulation characteristics, especially
sensitivity suppression characteristics: 15 dB improvement,
wide-band AGC operation even for SW band interference
. Improved low-frequency modulation distortion
. Improved temperature characteristics: S-meter, SD sensitivity
. Faster RF AGC response: RF: 1/3; IF: 1/8 (compared to
. predecessors)
Improved capability for driving external RF AGC transistors:
IB max = 200 µA
. Measures to prevent incorrect seek operation
. IF count buffer on chip; controlled by microcontroller
. Time constant switching circuit on chip for RF and IF
AGC
. IF AGC clear circuit on chip
. Measures that prevent stopping one station too soon
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
93097HA(II)/4281TS(US) No.3507-1/28




LA1136 pdf, 반도체, 판매, 대치품
LA1136N, 1136NM, 1137N, 1137NM
LA1136N, LA1136NM
Operating Conditions at Ta = 25°C, VCC = 8 V, fr = 1 MHz, fm = 400 Hz, See specified Test Circuit
Parameter
Current drain
Detection output
Signal-to-noise ratio
AGC figure-of-merit
Total harmonic distortion
Signal meter output voltage
Stop detector sensitivity
Local-oscillator buffer output
voltage
IF buffer output voltage
IF count buffer output voltage
IF count buffer output leakage
voltage
Antenna input level for RF AGC
ON and tweet prevention
Antenna input for wideband AGC
ON
Wideband/narrowband detector
output ratio (weak input)
Pin-diode driver current
Symbol
Conditions
ICC1
ICC2
VO
S/N
AGC
THD1
THD2
VSM1
VSM2
SD
VOSC
BUFF
VIF BUFF
VIFCB
Quiescent
130 dBµ
74 dBµ, 30% modulation
74 dBµ, 30% modulation
74 dBµ, 30% modulation,
reference output 10 dB below
input
74 dBµ, 80% modulation
130 dBµ, 80% modulation
Quiescent
130 dBµ
V18 = 3.5 V
Quiescent
74 dBµ, zero modulation
30 dBµ, zero modulation
VIFCBL 74 dBµ, zero modulation
ANT1
ANT2
IANTD
Quiescent, 1.0 MHz receive
signal, 1.4 MHz interference,
zero modulation
21 dBµ, 30% modulation
V1 = 0.7 V
Pin
min
12 14 17 22
L L LO
22
L L LO
30
L L L O –15.0
L L LO
49
L L LO
50
L L LO
L L LO
L L LO
L L LO
LHLO
L L LO
L L LO
L HHO
L L LO
3.5
26
270
530
260
LLLL
56
L L LO
92
L/H L L O
L L LO
4.0
typ
38
45
–12.0
54
54
0.4
0.5
0
5.0
32
330
750
300
62
98
2
5.5
max
52
60
–9.0
Unit
mA
dBm
dB
dBµ
1.0
%
2.0
0.3
V
7.5
38 dBµ
mVrms
1,000 mVrms
mVrms
10 mVrms
68 dBµ
104 dBµ
4 dB
mA
Note) SW voltage: H = 5 V, L = GND, O = OPEN
LA1137N, LA1137NM
Operating Characteristics at Ta = 25°C, VCC = 8 V, fr = 1 MHz, fm = 400 Hz, See specified Test Circuit
Parameter
Current drain
Detection output
Signal-to-noise ratio
AGC figure-of-merit
Total harmonic distortion
Signal meter output
voltage
Stop detector sensitivity
Local-oscillator buffer
output voltage
IF count buffer output
voltage
IF count buffer output
leakage voltage
Antenna input for RF
AGC ON and tweet
prevention
Antenna input for wide
band AGC ON
Pin-diode driver current
Symbol
Conditions
ICC1
ICC2
VO
S/N
AGC
THD1
THD2
VSM1
VSM2
SD
Quiescent
130 dBµ, zero modulation
74 dBµ, 30% modulation
74 dBµ, 30% modulation
74 dBµ, 30% modulation,
reference output 10 dB below
input
74 dBµ, 80% modulation
130 dBµ, 80% modulation
Quiescent
130 dBµ, zero modulation
V18 = 3.5 V, zero modulation
VOSC BUFF Quiescent
VIFCB 30 dBµ, zero modulation
VIFCBL 74 dBµ, zero modulation
ANT1
ANT2
IANTD
Quiescent, 1.0 MHz receive
signal, 1.4 MHz interference
signal, zero modulation
V1 = 0.7 V
SW
min typ max Unit
11 13 18
L LO
L LO
22 38 52
mA
30 45 60
L L O –15.0 –12.0 –9.0 dBm
L LO
50 55
dB
L LO
48 52 56 dB
L LO
L LO
0.3 1.0
0.4 2.0
%
L LO
0 0.3
V
L L O 3.5 5 7.5
HLO
27 33 39 dBµ
L L O 290 350
mVrms
H H O 260 300
mVrms
L LO
10 mVrms
LLL
56 62 68 dBµ
L LO
92 98 104 dBµ
L L O 4.0 5.5
mA
Note)
SW voltage: H = 5 V, L = 0 V, O = open
Short the ammeter used to measure the pin-diode driver current when not in use.
No. 3507-4/28

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LA1136 전자부품, 판매, 대치품
LA1136N, 1136NM, 1137N, 1137NM
LA1136N Equivalent Circuit
No. 3507-7/28

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