UPD17012GF-058 Datasheet, PDF (1/92 Pages) NEC – PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER AUTOMOBILE APPLICATION

PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17012GF-058
PLL FREQUENCY SYNTHESIZER AND CONTROLLER
FOR FM/MW/LW TUNER (AUTOMOBILE APPLICATION)
The µPD17012GF-058 is a CMOS LSI chip designed for use in FM/MW/LW tuners utilizing a PLL frequency
synthesizer design for worldwide applications.
The device incorporates a PLL frequency synthesizer controller, prescaler, and frequency counter. The device
enables detachable stereo systems, and is ideal for use in electronic volume control circuits for automobile
applications, high-performance FM/MW/LW tuners with a clock, and similar applications where compact dimensions
are essential.
FEATURES
• Capable of receiving broadcasts from stations in all of the world’s FM and MW bands, as well as the European
LW band
• Applicable to AM up-conversion
• Many preset functions including manual tuning, auto-tuning (seek, scan), and preset memory scanning
• Independent preset memory with six buttons: up to 18 FM stations (six stations, each enabling the setting of FM1,
FM2, and FM3), up to 12 MW stations (six stations, each enabling the setting of MW1 and MW2), and up to six
LW stations
• Last channel memory for three FM stations, two MW stations, and one LW station
• ST (stereo) display (The ST display is also supported for the MW band.)
• Display and control output of MTL (METAL)
• Auto-preset memory function
• “ ” (compact disc)/“ ” (cassette tape) display
• LOUD (loudness) control output and display
• Clock function for 12-hour or 24-hour clock display
• Compatible with the external LCD controller/driver (µPD7225)
• Built-in prescaler and frequency counter
• Remote-controller signal receiving function (when the µPD6121 is used for transmitting signals)
• Detachable keys (or key section) and LCD panel
• Electronic volume control function (compatible with the I²C bus)
• Alarm function
ORDERING INFORMATION
Part number
µPD17012GF-058-3BE
Package
64-pin plastic QFP (14 × 20 mm, 1.0 mm pitch)
The information in this document is subject to change without notice.
Document No. U12506EJ1V0DS00 (1st edition)
Date Published July 1997 J
Printed in Japan
©
11999907