LD512-PLID

更新时间： 2024-10-19 13:09:15

品牌	Logo	应用领域
GENNUM		放大器
页数	文件大小	规格书
5页	124K
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LD512-PLID 数据手册

Low Parts

Compression Amplifier

GB512/LD512DATASHEET

DESCRIPTION

FEATURES

TheGB512andLD512are8pinstand-aloneinputcompression

amplifiers requiring minimal external parts. Each consists of a

voltage regulator for the electret microphone providing a high

power supply rejection ratio (PSRR), a compression stage

which has a 2:1 compression ratio, and an auto-biasing,

class A, voltage drive output stage.

• 44 dB typical preamplifier gain

• 14 dB typical output stage gain

• compression function ratio 1:1 to 2:1 to ∞:1

• automatic setting of transducer current

• operation down to 1.1 VDC

The auto-bias output stage can drive a variety of impedances

ranging from 500 Ω to 5 kΩ without adding any external

resistors to set the bias.

• greater than 40 dB volume control range

The GB512 and LD512 are recommended for low to medium

gain/output ITE and ITC type hearing aids.

STANDARD PACKAGING

• 8 pin PLID

The GB512 is tested to tighter test limits.

• 8 pin SLT (LD512)

• Chip (61 x 61 mils)

Au Bump

200 mV

REF

V_REG

16 dB

28 dB

A IN

C OUT

CONTROL

C_AGC

GND

B OUT C IN

BLOCK DIAGRAM

Revision Date: January 2001

Document No. 500 - 75 - 08

GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-5946

Japan Branch: A-302, Miyamae Village, 2-10-42, Miyamae, Suginami-ku, Tokyo 168, Japan

tel. (03) 3334-7700 fax (03) 3247-8839

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