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參數(shù)資料
| 型號(hào)： | LA7289 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | VCR Audio Signal Record and Playback Processor |
| 中文描述： | 錄像機(jī)音頻信號(hào)處理器記錄和回放 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 210K |
| 代理商： | LA7289 |
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
CC
max
V
IN
2
I
IN
2
Pd max
14
V
Pin 2 input voltage
DC
±45
Vp-p
Pin 2 input current
±1.5
mA
Allowable power dissipation
Ta
≤
65 °C
500
mW
Operating temperature
Topr
–10 to +65
°C
Storage temperature
Tstg
–55 to +150
°C
Ordering number : EN5642
43097HA(OT) No. 5642-1/11
Overview
The LA7289 includes on chip all functions required for
the record and playback of VCR audio signals and
achieves complete adjustment-free operation by the
adoption of an automatic record bias current adjustment
circuit. In addition, the inclusion of a switching circuit for
switching between tuner and line input in addition to the
circuits provided by earlier ICs makes the LA7289 truly
optimal for audio VCR products.
Functions
Equalizer amplifier
Ripple filter
Record/playback switching circuit
Muting
SP/LP/EP switching circuit
Record amplifier
ALC
Tape head switching circuit
Automatic record bias adjustment circuit
Input switching circuit (line/tuner)
Features
Adjustment-free record bias current (automatic
adjustment circuit adopted)
Built-in record bias oscillator circuit power supply
switch
Record equalizer choke coil no longer required
Playback amplifier input noise voltage: 1.0 μV rms
Value of the ALC detector capacitor reduced (to 3.3 μF)
Built-in high-voltage head switching circuit
Supply voltage: supports both 9 and 12-V operation
Built-in input switching circuit (for the line and tuner
inputs)
Package Dimensions
unit: mm
3067-DIP24S
SANYO: DIP24S
[LA7289]
LA7289
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
VCR Audio Signal Record and Playback Processor
Monolithic Linear IC
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
9, 12
V
Allowable operating voltage range
8.5 to 12.5
V
Operating Conditions
at Ta = 25°C
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