LA1867NM 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

比赛名单

LA1867NM

Car Radio Single-Chip Tuner System

SANYO -> Panasonic 

LA1867NM

3. MPX

• Nonadjusting VCO (912 kHz)

• Level-following type pilot cancelation circuit

• SNC

• FM HCC

• Stereo/mono display output

• Built-in anti-birdie stereo decoder

• Automatic stereo/mono switching

4. MRC

• DC level shifter circuit

• Noise amplifier

• Noise detection circuit

• Time constant control circuit

Block Features

1. FM-IF

• The development of a high performance S-meter circuit has simplified all types of control.

— High linearity S-meter circuit (6-stage detection type)

— High quality S-meter (superlative temperature characteristics)

• High quality design

— Design that emphasizes temperature characteristics

— S-meter, SD sensitivity, –3 dB L.S., etc.

• Improved active characteristics

— Muting circuit time constant control (Since the attack and recovery time can be set independently, the audio

quality under multipath conditions can be improved.)

— Three built-in S-meter circuits

Soft mute/HCC time constants

SD time constants

Application design is eased since these can all be set independently.

SNC time constants

2. Noise canceller

• Noise canceller error prevention when a narrow band (150 kHz) ceramic filter is used

• A new noise canceller system was developed.

— Reduced noise canceller errors during overmodulated signal reception.

— Reduced noise canceller errors under continuous noise conditions.

• Miniaturization of the required external capacitors

No. 4619-4/32

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