|
|
LA7775MのメーカーはSanyoです、この部品の機能は「Wideband FSK Receiver」です。 |
部品番号 | LA7775M |
| |
部品説明 | Wideband FSK Receiver | ||
メーカ | Sanyo | ||
ロゴ | |||
このページの下部にプレビューとLA7775Mダウンロード(pdfファイル)リンクがあります。 Total 5 pages
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 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-
kΩ external 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 kΩ 1 kΩ
8 pF
330 Ω
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-Ω resistor between pins 9 and 11 when using
1kΩ
this circuit.
11
1.5
10
330 Ω50kΩ
50kΩ
390 Ω
VCC
12
4.2
LIMITER AMP
T00082
T00083
Continued on next page.
No. 5736-3/5
3Pages | |||
ページ | 合計 : 5 ページ | ||
|
PDF ダウンロード | [ LA7775M データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
LA7775M | Wideband FSK Receiver | Sanyo |