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PDF UPD17012GF-058-3BE Data sheet ( Hoja de datos )
| Número de pieza | UPD17012GF-058-3BE | |
| Descripción | PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER AUTOMOBILE APPLICATION | |
| Fabricantes | NEC | |
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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
1 page  
CONTENTS
µPD17012GF-058
1. PIN FUNCTIONS ........................................................................................................................ 7
2. KEY MATRIX STRUCTURE ...................................................................................................... 14
2.1 Placement of the Initial Setting Diode, Alternation, and Transistor Switch Matrixes ........... 14
2.2 Switch Connection ........................................................................................................................... 14
2.3 Initial Setting Diode, Alternation, and Transistor Switch Matrix Connection ......................... 15
2.4 Momentary Key Matrix Placement ................................................................................................. 16
2.5 Momentary Key Matrix Connection ............................................................................................... 16
2.6 Description of the Key Matrixes .................................................................................................... 17
2.6.1 Initial setting diode matrixes ............................................................................................ 17
2.6.2 Alternation or transistor switch ....................................................................................... 28
2.6.3 Momentary keys ................................................................................................................. 29
3. ALARM FUNCTION .................................................................................................................... 52
3.1 Overview of the Alarm Function .................................................................................................... 52
3.2 Setting Alarm Mode ......................................................................................................................... 53
4. MODE TRANSITION .................................................................................................................. 59
5. DISPLAY ..................................................................................................................................... 66
5.1 LCD Panel ......................................................................................................................................... 66
5.2 Character Style ................................................................................................................................. 66
5.3 Examples of Display ........................................................................................................................ 66
5.4 LCD Assignment .............................................................................................................................. 67
5.5 Pin Assignment of the LCD Controller/Driver (µPD7225) .......................................................... 67
5.6 Description of Display ..................................................................................................................... 68
6. REMOTE CONTROL FUNCTION .............................................................................................. 70
6.1 Remote-Controller Key Placement (When the µPD6121G Is Used) .......................................... 70
6.2 Remote-Controller Keys .................................................................................................................. 71
6.3 Remote-Controller Data Codes ...................................................................................................... 71
6.4 Example of a Remote-Controller Circuit Using the µPD6121G-001 .......................................... 72
6.5 Example of a Remote-Controller Preamplifier Circuit Using the µPC2800HA ........................ 72
7. MUTE OUTPUT TIMING CHARTS ............................................................................................ 73
7.1 Radio Mute (RDMUTE Pin) Output Timing Charts ...................................................................... 73
7.2 Radio Mute (RDMUTE Pin) and Audio Mute (AMUTE Pin) Output Timing Charts .................. 76
8. PIN I/O CIRCUITS ...................................................................................................................... 78
5
5 Page 
µPD17012GF-058
Pin Symbol
No.
Pin name
Description
I/O type
32 POWER Power output The output is inverted each time the POWER key is pressed.
Use this pin to turn the radio on or off.
Connecting this pin to transistor switch RDSET enables power-on
and off of the radio.
CMOS
push-pull
output
33 BAND1 Band switching Output pin of the band switching signal in radio mode
CMOS
34 BAND2 signal output The operation depends on the mode, as described below:
push-pull
(1) In radio mode, radio-monitor tape mode, radio-monitor CD
output
mode
If the band to be received is switched by pressing the band
switching key, the output depends on the band, as listed below:
Pin
Band
MW
LW
FM
BAND1
0
0
1
BAND2
0
1
0
(0: Low, 1: High)
(2) In tape mode, CD mode, power-off mode
The output goes low.
35 IC IC
|
37
40
42
43
Internally connected pin.
Leave the pins open.
-
38 POUT Detachable
panel state
signal
Output pin of the detachable panel state signal
When the DTH switch is set to off, the pin outputs the detachable
panel state signal, having a frequency of 1 Hz and a duty cycle of
1/2.
CMOS
push-pull
output
39 ILLUMI Illumination
Illumination signal output pin
CMOS
signal output
The output methods are selected according to the states of the ILLA push-pull
and ILLB initial setting diodes, as follows:
output
ILLA
0
0
1
1
ILLB
0
1
0
1
Function
Loudness function only
Loudness/illumination functions
Loudness/illumination functions
Loudness function only
(1: Shorted by the diode; 0: Open)
41 LCD CS LCD chip select Output pin for the chip select signal
signal output
This pin is used as an output pin of the chip select signal for the
external LCD controller/driver (µPD7225).
When the output goes low, the external LCD controller/driver is
enabled.
CMOS
push-pull
output
Caution When the µPD7225 external LCD controller/driver is used, connect the C/D pin to the VDD pin at
the µPD7225.
11
11 Page | ||
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