UPD17071GB-012 PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
μPD17071GB-012
4-BIT SINGLE-CHIP MICROCONTROLLER WITH PLL FREQUENCY
SYNTHESIZER CONTROLLER FOR PORTABLE FM/AM RADIO AND TV
DESCRIPTION
The μPD17071GB-012 is a CMOS microcontroller with an on-chip PLL frequency synthesizer for receiving international FM and AM and Japanese TV broadcasting.
In addition, because it includes a prescaler (230 MHz MAX.), IF counter, and LCD controller/driver, it constitutes a high-performance, multi-function FM, AM, or TV tuner on a single chip.
Housed in a 56-pin QFP and driven by two dry cells at a low voltage (VDD = 1.8 to 3.6 V), the μPD17071GB-012 is ideal for creating a compact portable clock radio and radio cassette recorder.
FEATURES
•Preset memory
Three bands: FM, AM, and Japanese TV (1 to 12 channels)
10 stations for each band, totaling 30 stations
•Last channel memory
One station for each band, totaling 3 stations
•Tuning function
•Manual seek/auto seek
•Auto store memory
•Preset memory call
•LCD controller/driver
(1/4 duty, 1/2 bias, 3.1-V driven, frame frequency: 62.5 Hz)
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Watch function
12-hour or 24-hour indication Alarm function
Outputs alarm sound at set time every day Sleep timer function
Turns off radio after set time
(Time can be set in a range of 30 to 120 minutes in units of 30 minutes.)
Low-voltage operation
VDD = 1.8 to 3.6 V
ORDERING INFORMATION
Part Number |
Package |
μPD17071GB-012-1A7 56-pin plastic QFP (10 × 10 mm, 0.65 mm pitch)
The information in this document is subject to change without notice.
Document No. U12320EJ1V0DS00 (1st edition) Date Published July 1997 N
Printed in Japan
© 19957
μPD17071GB-012
FUNCTIONAL OUTLINE
Receive frequency, channel space, reference frequency, intermediate frequency, station detection mode
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(1/2) |
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Region |
Band |
Receive Frequency |
Channel Space |
Reference |
Intermediate |
Station |
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Frequency |
Frequency |
Detection Mode |
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Japan |
FM |
76.0 to 90.0 MHz |
100 kHz |
25 kHz |
–10.71 MHz |
IF only |
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IF and SD |
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76.0 to 108.0 MHz |
100 kHz |
25 kHz |
–10.71 MHz |
IF only |
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IF and SD |
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AM |
522 to 1629 kHz |
9 kHz |
3 kHz |
450 kHz |
IF only |
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IF and SD |
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459 kHz |
IF only |
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IF and SD |
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10.71 MHz |
IF only |
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IF and SD |
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TV |
1 to 12 ch |
— |
25 kHz |
–10.71 MHz |
IF only |
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IF and SD |
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U.S.A. |
FM |
87.5 to 107.9 MHz |
200 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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100 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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AM |
530 to 1710 kHz |
10 kHz |
5 kHz |
450 kHz |
IF only |
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IF and SD |
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460 kHz |
IF only |
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IF and SD |
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10.71 MHz |
IF only |
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IF and SD |
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China |
FM |
87.0 to 108.0 MHz |
100 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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50 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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AM |
522 to 1611 kHz |
9 kHz |
3 kHz |
450 kHz |
IF only |
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IF and SD |
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10.71 MHz |
IF only |
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IF and SD |
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Europe 1 |
FM |
87.5 to 108.0 MHz |
50 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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AM |
530 to 1620 kHz |
10 kHz |
5 kHz |
450 kHz |
IF only |
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459 kHz |
IF only |
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10.71 MHz |
IF only |
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522 to 1629 kHz |
9 kHz |
3 kHz |
450 kHz |
IF only |
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IF and SD |
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459 kHz |
IF only |
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IF and SD |
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10.71 MHz |
IF only |
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IF and SD |
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Europe 2 |
FM |
87.5 to 108.0 MHz |
50 kHz |
25 kHz |
10.71 MHz |
IF only |
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IF and SD |
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AM |
530 to 1620 kHz |
10 kHz |
5 kHz |
450 kHz |
IF only |
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459 kHz |
IF only |
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10.71 MHz |
IF only |
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522 to 1629 kHz |
9 kHz |
3 kHz |
450 kHz |
IF only |
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IF and SD |
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459 kHz |
IF only |
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IF and SD |
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10.71 MHz |
IF only |
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IF and SD |
Remark The initial values in the preset memory differ between “Europe 1” and “Europe 2”.
2
μPD17071GB-012
(2/2)
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Setting of Pin Input |
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Setting of Initialization Diode Switch |
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9k/10k |
AREA0 |
AREA1 |
Japan Wide |
CHINA BAND |
IFSEL0 |
IFSEL1 |
SD_IF |
SD |
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100k/200k |
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Don’t care |
L |
L |
L |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
L |
L |
L |
0 |
Don’t care |
Don’t care |
1 |
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Don’t care |
L |
L |
H |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
L |
L |
H |
0 |
Don’t care |
Don’t care |
1 |
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Don’t care |
L |
L |
Don’t care |
0 |
0 |
0 |
0 |
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Don’t care |
L |
L |
Don’t care |
0 |
0 |
0 |
1 |
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Don’t care |
L |
L |
Don’t care |
0 |
1 |
0 |
0 |
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Don’t care |
L |
L |
Don’t care |
0 |
1 |
0 |
1 |
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Don’t care |
L |
L |
Don’t care |
0 |
0 |
1 |
0 |
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Don’t care |
L |
L |
Don’t care |
0 |
0 |
1 |
1 |
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Don’t care |
L |
L |
Don’t care |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
L |
L |
Don’t care |
0 |
Don’t care |
Don’t care |
1 |
Don’t care |
L |
H |
L |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
L |
H |
L |
0 |
Don’t care |
Don’t care |
1 |
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Don’t care |
L |
H |
H |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
L |
H |
H |
0 |
Don’t care |
Don’t care |
1 |
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Don’t care |
L |
H |
Don’t care |
0 |
0 |
0 |
0 |
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Don’t care |
L |
H |
Don’t care |
0 |
0 |
0 |
1 |
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Don’t care |
L |
H |
Don’t care |
0 |
1 |
0 |
0 |
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Don’t care |
L |
H |
Don’t care |
0 |
1 |
0 |
1 |
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Don’t care |
L |
H |
Don’t care |
0 |
0 |
1 |
0 |
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Don’t care |
L |
H |
Don’t care |
0 |
0 |
1 |
1 |
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Don’t care |
Don’t care |
Don’t care |
L |
1 |
Don’t care |
Don’t care |
0 |
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Don’t care |
Don’t care |
Don’t care |
L |
1 |
Don’t care |
Don’t care |
1 |
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Don’t care |
Don’t care |
Don’t care |
H |
1 |
Don’t care |
Don’t care |
0 |
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Don’t care |
Don’t care |
Don’t care |
H |
1 |
Don’t care |
Don’t care |
1 |
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Don’t care |
Don’t care |
Don’t care |
Don’t care |
1 |
0 |
0 |
0 |
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Don’t care |
Don’t care |
Don’t care |
Don’t care |
1 |
0 |
0 |
1 |
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Don’t care |
Don’t care |
Don’t care |
Don’t care |
1 |
0 |
1 |
0 |
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Don’t care |
Don’t care |
Don’t care |
Don’t care |
1 |
0 |
1 |
1 |
Don’t care |
H |
L |
Don’t care |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
H |
L |
Don’t care |
0 |
Don’t care |
Don’t care |
1 |
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L |
H |
L |
Don’t care |
0 |
0 |
0 |
0 |
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L |
H |
L |
Don’t care |
0 |
1 |
0 |
0 |
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L |
H |
L |
Don’t care |
0 |
0 |
1 |
0 |
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H |
H |
L |
Don’t care |
0 |
0 |
0 |
0 |
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Don’t care |
H |
L |
Don’t care |
0 |
0 |
0 |
1 |
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H |
H |
L |
Don’t care |
0 |
1 |
0 |
0 |
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Don’t care |
H |
L |
Don’t care |
0 |
1 |
0 |
1 |
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H |
H |
L |
Don’t care |
0 |
0 |
1 |
0 |
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Don’t care |
H |
L |
Don’t care |
0 |
0 |
1 |
1 |
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Don’t care |
H |
H |
Don’t care |
0 |
Don’t care |
Don’t care |
0 |
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Don’t care |
H |
H |
Don’t care |
0 |
Don’t care |
Don’t care |
1 |
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L |
H |
H |
Don’t care |
0 |
0 |
0 |
0 |
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L |
H |
H |
Don’t care |
0 |
1 |
0 |
0 |
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L |
H |
H |
Don’t care |
0 |
0 |
1 |
0 |
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H |
H |
H |
Don’t care |
0 |
0 |
0 |
0 |
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Don’t care |
H |
H |
Don’t care |
0 |
0 |
0 |
1 |
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H |
H |
H |
Don’t care |
0 |
1 |
0 |
0 |
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Don’t care |
H |
H |
Don’t care |
0 |
1 |
0 |
1 |
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H |
H |
H |
Don’t care |
0 |
0 |
1 |
0 |
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Don’t care |
H |
H |
Don’t care |
0 |
0 |
1 |
1 |
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Remarks 1. H: High-level input, L: Low-level input
2. 0: Open, 1: Short
3
μPD17071GB-012
INITIAL VALUE OF PRESET MEMORY
The contents of the preset memory on first power application differ depending on the destination region, as follows:
Destination |
Band |
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Preset Memory |
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Last |
M1 |
M2 |
M3 |
M4 |
M5 |
M6 |
M7 |
M8 |
M9 |
M10 |
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Japan |
FM |
(MHz) |
77.5 |
77.5 |
80.0 |
82.5 |
85.0 |
87.5 |
76.0 |
90.0 |
76.0 |
76.0 |
76.0 |
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FM wide |
(MHz) |
76.0 |
76.0 |
90.0 |
98.0 |
106.0 |
108.0 |
76.0 |
90.0 |
76.0 |
76.0 |
76.0 |
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AM |
(kHz) |
603 |
603 |
810 |
999 |
1440 |
1620 |
522 |
522 |
522 |
522 |
522 |
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TV |
(ch) |
1 ch |
1 ch |
3 ch |
4 ch |
8 ch |
12 ch |
1 ch |
1 ch |
1 ch |
1 ch |
1 ch |
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U.S.A. |
FM100 k |
(MHz) |
87.5 |
87.5 |
90.0 |
98.0 |
106.0 |
108.0 |
87.5 |
87.5 |
87.5 |
87.5 |
87.5 |
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FM200 k |
(MHz) |
87.5 |
87.5 |
90.1 |
98.1 |
106.1 |
107.9 |
87.5 |
87.5 |
87.5 |
87.5 |
87.5 |
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AM |
(kHz) |
530 |
530 |
600 |
1000 |
1200 |
1440 |
1710 |
530 |
530 |
530 |
530 |
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China |
FM |
(MHz) |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
87.0 |
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AM |
(kHz) |
522 |
522 |
522 |
522 |
522 |
522 |
522 |
522 |
522 |
522 |
522 |
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Europe 1 |
FM |
(MHz) |
87.5 |
87.5 |
90.0 |
98.0 |
106.0 |
108.0 |
87.5 |
87.5 |
87.5 |
87.5 |
87.5 |
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AM9 k |
(kHz) |
522 |
522 |
603 |
999 |
1440 |
1602 |
522 |
522 |
522 |
522 |
522 |
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AM10 k |
(kHz) |
530 |
530 |
600 |
1000 |
1400 |
1610 |
530 |
530 |
530 |
530 |
530 |
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Europe 2 |
FM |
(MHz) |
87.5 |
87.5 |
90.1 |
98.1 |
106.1 |
108.0 |
87.5 |
87.5 |
87.5 |
87.5 |
87.5 |
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AM9 k |
(kHz) |
522 |
522 |
603 |
999 |
1440 |
1602 |
522 |
522 |
522 |
522 |
522 |
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AM10 k |
(kHz) |
530 |
530 |
600 |
1000 |
1400 |
1610 |
530 |
530 |
530 |
530 |
530 |
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Remark The initial values in the preset memory differ between “Europe 1” and “Europe 2”.
4
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μPD17071GB-012 |
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Tuning Function |
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(1) Manual tuning |
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Type |
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Description |
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Manual up |
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Increments or decrements frequency one step each time the corresponding key is pressed. |
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Manual down |
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(2) Auto tuning |
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Type |
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Description |
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Seek up |
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Searches station in up or down direction and, when station has been found, holds frequency of station. |
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Seek down |
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(3)Preset memory
Stores 10 stations for each band (FM, AM, and TV) by using 10 buttons, totaling 30 stations.
(4)Preset memory call
Receives the frequency written to the preset memory.
(5)Auto store memory
Searches all the frequencies in the received band, and automatically writes the frequencies of stations to the preset memory.
(6)Last channel memory
Stores the frequency of the station received last in each of the three bands (FM, AM, and TV), totaling three stations.
5
μPD17071GB-012
WATCH FUNCTION
(1)12-hour (with “AM” and “PM” indication) or 24-hour indication
The time indication mode is automatically selected according to the selected destination region.
(2)Time on power application
On power application, the time is set to “00:00” (midnight) and counting is started.
TIMER FUNCTION
(1)Alarm function
Outputs an alarm sound at set time every day.
(2)Sleep timer
Automatically turns off radio after 30 to 120 minutes (the time can be set in units of 30 minutes).
OTHERS
(1)Outputs beep sound to confirm valid momentary key input.
(2)Watch/frequency (mode) indication selection
(3)Mute control output
(4)Key lock function
6
μPD17071GB-012
PIN CONFIGURATION (Top View)
56-pin plastic QFP (10 × 10 mm, 0.65-mm pitch)
μPD17071GB-012-1A7
CLKENA (P0B3) |
JapanWide/100 k/200 k (P0B2) |
AREA1 (P0B1) |
AREA0 (P0B0) |
BEEP |
NC |
CE |
LCD14 |
LCD13 |
LCD12 |
LCD11 |
LCD10 |
LCD9 |
LCD8 |
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56 |
55 |
54 |
53 |
52 |
51 |
50 |
49 |
48 |
47 |
46 |
45 |
44 |
43 |
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MUTE (P1C0) |
1 |
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42 |
LCD7 |
BAND1 (P0A0) |
2 |
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41 |
LCD6 |
BAND2 (P0A1) |
3 |
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40 |
LCD5 |
KS1 (P0A2) |
4 |
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39 |
LCD4 |
KS2 (P0A3) |
5 |
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38 |
LCD3 |
KS3 (P1B0) |
6 |
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37 |
LCD2 |
KS4 (P1B1) |
7 |
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36 |
LCD1 |
KS5 (P1B2) |
8 |
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35 |
LCD0 |
KS6 (P1B3) |
9 |
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34 |
COM3 |
K0 (P1A0) |
10 |
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33 |
COM2 |
K1 (P1A1) |
11 |
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32 |
COM1 |
K2 (P1A2) |
12 |
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31 |
COM0 |
K3 (P1A3) |
13 |
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30 |
REGLCD1 |
KEYLOCK (P0C0) |
14 |
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29 |
CAPLCD1 |
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15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
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STEREO (P0C1) |
9 k/10 k/SD (P0D2) |
FMIFC/AMIFC (P0D3) |
GND |
EO |
VCOL |
VCOH |
REG0 |
VDD |
XOUT |
XIN |
REG1 |
REGLCD0 |
CAPLCD0 |
Remark ( ): Pins for μPD17071GB-XXX-1A7
7
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μPD17071GB-012 |
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TABLE OF CONTENTS |
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1. |
PIN FUNCTION .................................................................................................................................... |
9 |
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2. CONFIGURATION OF KEY MATRIX ................................................................................................ |
15 |
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2.1 |
Layout of Initialization Diode Key Matrix ............................................................................. |
15 |
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2.2 |
Layout of Momentary Key Matrix ........................................................................................... |
15 |
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2.3 |
Connection of Key Matrix ....................................................................................................... |
16 |
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2.4 |
Description of Key Matrix ....................................................................................................... |
17 |
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2.4.1 |
Initialization diode matrix ............................................................................................................ |
17 |
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2.4.2 |
Momentary key ............................................................................................................................. |
20 |
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2.5 |
Alarm Function ......................................................................................................................... |
28 |
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2.6 |
Key Lock Function ................................................................................................................... |
29 |
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3. |
LCD DISPLAY .................................................................................................................................... |
30 |
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3.1 |
LCD Panel .................................................................................................................................. |
30 |
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3.2 |
Font ............................................................................................................................................ |
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30 |
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3.3 |
LCD Pattern ............................................................................................................................... |
30 |
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3.4 |
LCD Pin Assignment ................................................................................................................ |
31 |
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3.5 |
Display Description ................................................................................................................. |
33 |
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3.6 |
Display Example ....................................................................................................................... |
34 |
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4. MUTE OUTPUT TIMING CHART ...................................................................................................... |
36 |
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4.1 |
Manual up/down (operates by pressing key and releasing within 0.5 sec) .................... |
36 |
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4.2 |
Auto up/down (operates by holding down key for 0.5 sec or longer) ............................. |
36 |
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4.3 |
Calling Preset Memory ............................................................................................................ |
37 |
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4.4 |
Band Selection ......................................................................................................................... |
37 |
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4.5 |
CE Pin ........................................................................................................................................ |
37 |
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4.5.1 High level to low level ................................................................................................................. |
37 |
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4.5.2 Low level to high level ................................................................................................................. |
37 |
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4.6 |
Sleep Timer ............................................................................................................................... |
38 |
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5. |
ELECTRICAL SPECIFICATIONS (PRELIMINARY) ......................................................................... |
39 |
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6. |
PACKAGE ........................................................................................................................................... |
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42 |
8
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μPD17071GB-012 |
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1. PIN FUNCTION |
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Pin No. |
Symbol |
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Pin Name |
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Description |
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I/O Form |
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1 |
MUTE |
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Mute output |
Outputs a mute control signal. |
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CMOS |
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Outputs a high level in the following cases: |
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push-pull |
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• When radio is turned ON/OFF |
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output |
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• When the frequency band is changed |
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• During manual tuning |
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• During auto tuning |
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• When the preset memory is called |
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• In power-off state |
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2 |
BAND1 |
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Band select |
These pins output band select signals. |
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CMOS |
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3 |
BAND2 |
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signal output |
The output of each band is as follows: |
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push-pull |
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output |
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Pin |
BAND1 |
BAND2 |
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Selected band |
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AM |
0 |
0 |
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FM |
1 |
0 |
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TV (1 to 3 ch) |
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TV (4 to 12 ch) |
1 |
1 |
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(0: Low level, 1: High level) |
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4 |
KS1 |
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Key source |
Key source output pins of a key matrix |
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CMOS |
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output |
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push-pull |
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9 |
KS6 |
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output |
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10 |
K0 |
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Key return signal |
These pins input the key return signals of a key matrix. They are |
Input |
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input |
connected to an internal pull-down resistor. |
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13 |
K3 |
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14 |
KEYLOCK |
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Key lock signal |
This pin inputs a key lock signal. |
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Input |
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input |
The signal input to this pin is used to lock or unlock a momentary key. |
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Input a signal to this pin as follows: |
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• High level: To lock the momentary key. |
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All momentary keys are invalid while the keys are locked. |
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• Low level: To unlock the keys. |
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Note, however, that a high level or low level of less than 32 ms is |
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invalid. |
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15 |
STEREO |
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Stereo signal |
This pin inputs a stereo signal. |
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Input |
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input |
Reception of stereo broadcasting is identified by the signal input to |
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this pin. |
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Input a low level to this pin while stereo broadcasting is being |
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received. |
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9
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μPD17071GB-012 |
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Pin No. |
Symbol |
Pin Name |
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Description |
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I/O Form |
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16 |
9 k/10 k |
AM setting input/ |
This pin inputs an SD (Station Detector) signal. |
Input |
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/SD |
SD signal input |
When “Europe 1” or “Europe 2” is selected as the destination region, |
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this pin can be also used to input setting of a channel space in an |
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AM band. |
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(1) Setting of channel space in AM band for “Europe 1” and |
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“Europe 2” (9 k/10k) |
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This setting is valid only when “Europe 1” or “Europe 2” is selected |
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as the destination region. |
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The setting is read only on power application (power-ON reset), or |
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when the signal input to the CE pin (pin 50) goes high (CE reset); |
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otherwise, it is ignored. |
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Input a signal to this pin as follows: |
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• High level: Channel space 9 kHz |
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• Low level: Channel space 10 kHz |
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Note that the setting of this pin is invalid when initialization diode |
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switch SD_IF = 1, and the channel space is 9 kHz. |
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(2) Input of SD signal (SD) |
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When a station has been detected this is identified by the signal |
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input to this pin and the frequency counter when initialization diode |
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switch SD_IF = 1. |
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Input a high level to this pin when a station is detected. |
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However, a signal input for less than 32 ms is invalid. |
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17 |
FMIFC |
FM/AM |
This pin inputs an intermediate frequency (IF) in an FM or AM band. |
Input |
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/AMIFC |
intermediate |
The signal input to this pin is used to identify a station. |
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frequency input |
When initialization diode switch SD_IF = 1, however, the signal input to |
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this pin and the signal input to the SD pin (pin 16) are used to identify |
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a station. |
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The range of the input frequency in which detection of a station is |
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identified is as follows: |
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Band |
Input frequency range <1> |
Input frequency range <2> |
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FM |
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10.7 MHz ± 20 kHz |
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AM |
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450 kHz ± 1 kHz |
459/460 kHz ± 1 kHz |
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TV |
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10.7 MHz ± 20 kHz |
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The conditions of input frequency ranges <1> and <2> vary as follows |
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depending on the setting of initialization diodes IFSEL1 and IFSEL2. |
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IFSEL1 |
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IFSEL2 |
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Selected frequency range |
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0 |
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0 |
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Input frequency range <1> |
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1 |
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0 |
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Input frequency range <2> |
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0 |
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1 |
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Input frequency range <1> |
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(0: Open, 1: Short) |
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18 |
GND |
Ground |
Ground pin |
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10
μPD17071GB-012
Pin No. |
Symbol |
Pin Name |
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Description |
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I/O Form |
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19 |
EO |
Error out |
This pin outputs PLL (Phase Locked Loop) errors. |
CMOS |
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It outputs the result of comparison between the frequency input to the |
3-state |
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VCOH (pin 21) or VCOL (pin 20) and a set frequency. |
output |
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• Input frequency > Set frequency: High level |
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• Input frequency < Set frequency: Low level |
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• Input frequency = Set frequency: Floating |
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Connect this pin to a varactor diode via an external LPF (lowpass |
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filter). |
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20 |
VCOL |
AM local |
This pin inputs local oscillation output (VCO output) in an AM band. |
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oscillation input |
The signal that can be input to this pin is as follows: |
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Selected intermediate |
Frequency range |
Minimum amplitude |
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frequency |
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(Vp-p) |
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10.71 MHz |
5 to 50 |
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0.2 |
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Other than 10.71 MHz |
0.3 to 8 |
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0.2 |
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Because an internal AC amplifier is provided, cut the DC component |
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of the input signal with a capacitor. |
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21 |
VCOH |
FM local |
This pin inputs local oscillation output (VCO output) in an FM and TV |
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oscillation input |
band. The signal that can be input to this pin is as follows: |
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Frequency range (MHz) |
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Minimum amplitude (Vp-p) |
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4 to 230 |
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0.2 |
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Because an internal AC amplifier is provided, cut the DC component |
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of the input signal with a capacitor. |
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22 |
REG0 |
Power supply pin |
This is a voltage regulator pin for PLL. |
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Connect this pin to GND via a 0.1-μF capacitor. |
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It outputs a low level when the radio is off. |
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REG0
0.1μF
23 |
VDD |
Power supply pin |
This is a power supply pin. |
— |
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It supplies a voltage of VDD = 1.8 to 3.6 V (TA = –20 to +70 °C) to |
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operate all the functions. |
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Do not apply a voltage higher than that applied to the VDD pin to any |
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pin other than the VDD pin. |
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24 |
XOUT |
Crystal resonator |
These pins are used to connect a crystal resonator for system clock |
CMOS |
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oscillation. |
push-pull |
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Connect a 75-kHz crystal resonator across these pins. |
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25 |
XIN |
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— |
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The accuracy of the watch is affected only by the oscillation |
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frequency of the crystal resonator. |
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11
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μPD17071GB-012 |
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Pin No. |
Symbol |
Pin Name |
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Description |
I/O Form |
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26 |
REG1 |
Power supply pin |
This pin is a voltage regulator pin for oscillation circuit. |
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Connect this pin to GND via a 0.1-μF capacitor. |
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REG1 |
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0.1μF |
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27 |
REGLCD0 |
LCD driving |
• REGLCD1 and REGLCD0 |
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28 |
CAPLCD0 |
power supply |
These pins supply the LCD driving voltage. |
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29 |
CAPLCD1 |
pins |
• CAPLCD1 and CAPLCD0 |
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30 |
REGLCD1 |
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Connect a capacitor for a doubler circuit across these pins to create |
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an LCD driving voltage. |
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Connect the capacitor as shown below to create the doubler circuit. |
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C1 = C2 = 0.1 μF |
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C1 |
C3 = 0.01 μF |
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REGLCD1 |
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CAPLCD1 |
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CAPLCD0 |
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C3 |
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REGLCD0 |
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C2 |
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Caution The value of the LCD drive voltage changes if the values |
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of C1, C2, and C3 are changed because of the configuration |
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of the doubler circuit. |
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31 |
COM0 |
LCD common |
These pins output common signals to an LCD panel. |
CMOS |
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signal output |
They output 60 dots on the LCD panel by creating a matrix with |
push-pull |
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34 |
COM3 |
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LCD0 through LCD14 pins (pins 35 through 49). |
output |
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35 |
LCD0 |
LCD segment |
These pins outputs segment signals to an LCD panel. |
CMOS |
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signal output |
They display 60 dots on the LCD panel by creating a matrix with |
push-pull |
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49 |
LCD14 |
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COM0 through COM3 pins (pins 31 through 34). |
output |
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50 |
CE |
Chip enable |
This input pins selects radio operation as follows: |
Input |
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• High level |
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Turns ON the radio. |
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• Low level |
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Turns OFF the radio. |
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Note, however, that a high or low level of less than 200 μs is not |
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accepted. |
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51 |
NC |
No connection |
No connection. Externally pull down this pin. |
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12
μPD17071GB-012
Pin No. |
Symbol |
Pin Name |
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Description |
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I/O Form |
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52 |
BEEP |
BEEP/ALARM |
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This pin outputs a key-ON confirmation sound (beep output) and |
CMOS |
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output |
alarm sound. |
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push-pull |
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output |
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(1) Beep output |
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A pulse of 1.5 kHz is output for about 40 ms in the following cases: |
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• When a valid key is input |
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• While time is adjusted up or down in high-speed mode |
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• During seek up/down |
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(2) Alarm sound output |
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When the time reaches the alarm time set, a 3 kHz pulse is |
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intermittently output approximately every 64 ms, five times after 1 |
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second. |
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The alarm sound is output for 10 minutes from the start of output, |
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or until it is canceled. |
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53 |
AREA0 |
Destination |
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These pins input setting for the destination region. |
Input |
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54 |
AREA1 |
region setting |
The setting of these pins is read only on application of VDD (power- |
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input |
ON reset) or when the signal input to the CE pin goes high (CE |
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reset); otherwise, it is ignored. |
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Input a signal to these pins as follows: |
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AREA0 |
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AREA1 |
Destination region |
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0 |
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Japan |
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1 |
U.S.A. |
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1 |
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0 |
Europe 1 |
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1 |
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Europe 2 |
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(0: Low level, 1: High level) |
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When initialization diode switch CHINA_BAND = 1, however, the |
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setting is invalid, and the destination region is China. |
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13
μPD17071GB-012
Pin No. |
Symbol |
Pin Name |
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Description |
I/O Form |
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55 |
Japan Wide/ |
FM setting input |
This pin inputs an FM receive frequency band and setting of a channel |
Input |
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100 k/200 k |
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space. The setting differs depending on the destination region. |
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The setting is read only on application of VDD (power-ON reset) or when |
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the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored. |
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(1) |
When the destination region is Japan (Japan Wide) |
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Sets an FM receive frequency band. |
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Input as follows: |
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• High-level input: 76.0 to 108.0 MHz |
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• Low-level input: 76.0 to 90.0 MHz |
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(2) |
When the destination region is the U.S.A. (100 k/200 k) |
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Sets the channel space of the FM band. |
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Input as follows: |
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• High-level input: 100-kHz step |
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• Low-level input: 200-kHz step |
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(3) |
When the destination region is China (100 k/200 k) |
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Sets the channel space of the FM band. |
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Input as follows: |
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• High-level input: 50-kHz step |
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• Low-level input: 100-kHz step |
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56 |
CLKENA |
Watch function |
This pin inputs the setting for whether the watch function is used or not. |
Input |
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selection input |
The setting is read only on application of VDD (power-ON reset) or |
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when the CE pin (pin 50) goes high (CE reset); otherwise, it is ignored. |
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Input as follows: |
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• High-level input: Watch function used. |
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• Low-level input: Watch function not used. |
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14
μPD17071GB-012
2. CONFIGURATION OF KEY MATRIX
2.1 Layout of Initialization Diode Key Matrix
Input Pin |
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(Pin No.) |
K0 (10) |
K1 (11) |
K2 (12) |
K3 (13) |
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Output Pin |
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(Pin No.) |
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KS1 (4) |
— |
CHINA_BAND |
TV_ENA |
STOPSEL |
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KS2 (5) |
SD_IF |
MEMSEL |
IFSEL1 |
IFSEL2 |
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Remark —: Not set |
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2.2 Layout of Momentary Key Matrix
Input Pin |
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(Pin No.) |
K0 (10) |
K1 (11) |
K2 (12) |
K3 (13) |
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Output Pin |
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(Pin No.) |
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KS3 (6) |
SLEEP |
CHECK |
STOP |
BAND |
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KS4 (7) |
AUTO STORE |
M4 |
M5 |
+5 |
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KS5 (8) |
MEMORY/AUTO STORE |
M1/MEMORY UP |
M2 |
M3 |
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KS6 (9) |
MODE |
UP |
DOWN |
ALARM |
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15