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LA7775M の電気的特性と機能

LA7775MのメーカーはSanyoです、この部品の機能は「Wideband FSK Receiver」です。


製品の詳細 ( Datasheet PDF )

部品番号 LA7775M
部品説明 Wideband FSK Receiver
メーカ Sanyo
ロゴ Sanyo ロゴ 




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LA7775M Datasheet, LA7775M PDF,ピン配置, 機能
Ordering number : EN5736
Monolithic Linear Integrated Circuit
LA7775M
Wideband FSK Receiver
Overview
The LA7775M is an FM receiver for CATV or FM
communications equipment. In addition to functions for
FM demodulation (oscillator, mixer, limiting IF amplifier,
and quadrature detection circuits) it also includes on chip
an FSK data shaper circuit, an RF amplifier, and a local
oscillator frequency switching circuit.
Functions
• RF amplifier
• Mixer
• Oscillator
• Oscillator switching
• Limiting IF amplifier
• Quadrature detection
• Data shaper
Package Dimensions
unit: mm
3045B-MFP24
[LA7775M]
Features
• Wideband RF input
• On-chip RF amplifier
• On-chip oscillator frequency switching circuit
SANYO: MFP24
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Conditions
Ratings
7
350
–20 to +75
–55 to +125
Unit
V
mW
°C
°C
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Input frequency
Symbol
VCC
VCCop
fin21, fin24
Conditions
Ratings
5
4.5 to 5.5
40 to 350
Unit
V
V
MHz
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63097HA(OT) No. 5736-1/5

1 Page





LA7775M pdf, ピン配列
Pin Functions
Pin No.
1
Pin
RFGND
Pin voltage(V)
LA7775M
Notes
Equivalent circuit
2 LOOUT
3 LOCOM
4 LORES1
5 LORES2
6 RFVCC
7 IFOUT
Oscillator output after the limiting amplifier. This pin is used
3.3 when constructing a PLL synthesizer or related circuit. A 1-
kexternal resistor is required when using this pin.
2
100 mA
1.2
4
When pin 19 is low, pin 4 is selected, when high, pin 5 is
1.9 selected.
0.8
3
3
T00079
5
Switching
circuit
19
T00080
4.1 A matching resistor for the SAW filter is built in.
4 pF
1 k1 k
8 pF
330
7
0.5 mA
8 VCC
9
LIMITER
INPUT1
10
LIMITER
INPUT2
11
LMITER
BIAS
12
LIMITER
OUTPUT
T00081
1.5
9
1.5
Insert a 510-resistor between pins 9 and 11 when using
1k
this circuit.
11
1.5
10
330 50k
50k
390
VCC
12
4.2
LIMITER AMP
T00082
T00083
Continued on next page.
No. 5736-3/5


3Pages





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部品番号部品説明メーカ
LA7775M

Wideband FSK Receiver

Sanyo
Sanyo


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