BA7757

更新时间： 2024-02-15 04:55:07

品牌	Logo	应用领域
罗姆 - ROHM		放大器
页数	文件大小	规格书
5页	84K
描述
Switchless REC / PB amplifier for standard audio signal processing

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技术参数
数据手册

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BA7757 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFP
包装说明：	QFP-32	针数：	32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.73
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	S-PQFP-G32
JESD-609代码：	e3/e2	长度：	7 mm
信道数量：	1	功能数量：	1
端子数量：	32	封装主体材料：	PLASTIC/EPOXY
封装代码：	LQFP	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.55 mm
最大供电电压 (Vsup)：	6 V	最小供电电压 (Vsup)：	4 V
表面贴装：	YES	端子面层：	TIN/TIN COPPER
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	10
宽度：	7 mm	Base Number Matches：	1

BA7757 数据手册

Video ICs

Switchless REC / PB amplifier for

standard audio signal processing

BA7757BK

The BA7757BK contains a playback equalizer amplifier, an REC / PB switch, a line amplifier, an ALC circuit with

built-in detector, a recording amplifier, an analog switch for input switching, and a logic control circuit for independent

switching of REC / EE, PR / EE, line mute and input.

The IC is easy to interface with control systems, and features low noise during mode switching and at power on / off.

The line amplifier and recording amplifire are directly connected internally, allowing construction of a high-perfor-

mance audio signal processing circuit for VCRs using a minimum number of external components.

Features

•

1) All necessary switches for audio signal processing

are built-in.

3) Amplifiers required for audio recording and play-

back are provided on the IC.

· MIC / LINE input selector switch.

4) Excellent S / N and distortion specifications through

use of high-level ALC VR.

· EP / SP equalizer selector switch.

· Built-in head switch on the playback side of the

head for head switching for REC / PB, and a head-

switch driver terminal provided on the recording

side.

5) The ALC level is set using a external resistor, and

variation due to temperature is extremely low.

6) Built-in ripple filter gives excellent ripple rejection.

7) Low noise generation when power is switched on

and off, and during control system switching.

8) The line output can directly drive earphone.

9) Few external parts required.

· EE / PB and EE / REC selector switches (compati-

bility with after-recording mode (AFR) is possible).

· Line muting switch.

2) All control functions are independent, so interfacing

with the control system is simple.

10) Available in a QFP32 package, for high-density

mounting.

11) Low power consumption.

12 3 4 5

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