TEA5757中文资料Self Tuned Radio (STR)数据手册恩XP规格书

描述 Description

GENERAL DESCRIPTION
The TEA5757; TEA5759 is a 44-pin integrated AM/FM stereo radio circuit including a novel tuning concept. The radio part is based on the TEA5712.
The TEA5757 is used in FM-standards in which the local oscillator frequency is above the radio frequency (e.g. European and American standards).
The TEA5759 is the version in which the oscillator frequency is below the radio frequency (e.g. Japanese standard).FEATURES
• The tuning system has an optimized IC partitioning both from application (omitting interferences) and flexibility (removable front panel option) point of view: the tuning synthesizer is on-chip with the radio
• The tuning quality is superior and requires no IF-counter for stop-detection; it is insensitive to ceramic filter tolerances
• In combination with the microcontroller, fast, low-power operation of preset mode, manual-search, auto-search and auto-store are possible
• The local (internal) controller function facilitates reduced and simplified microcontroller software

特性 Features

• The tuning system has an optimized IC partitioning both from application (omitting interferences) and flexibility (removable front panel option) point of view: the tuning synthesizer is on-chip with the radio
• The tuning quality is superior and requires no IF-counter for stop-detection; it is insensitive to ceramic filter tolerances
• In combination with the microcontroller, fast, low-power operation of preset mode, manual-search, auto-search and auto-store are possible
• The local (internal) controller function facilitates reduced and simplified microcontroller software