Alarm clock and radio frequency LCD display dedicated IC
2007-12-5
TEC9902B
TEC9902B
LCD
、: TEC9902B , FM/AM/SW ,LCD
CMOS ,。。 1. FM/AM/SW ,: FM:00.0MHz~199.9MHz;AM:000KHz~...
Description
2007-12-5
TEC9902B
TEC9902B
LCD
、: TEC9902B , FM/AM/SW ,LCD
CMOS ,。。 1. FM/AM/SW ,: FM:00.0MHz~199.9MHz;AM:000KHz~1999KHz;SW:0.00MHz~29.00MHz 2.,FM:10.7MHz//-10.7MHz//70KHz//-70KHz;AM/SW: 450KHz//455KHz 3. 12/24 ,, 3 , 1 4.,LCD , 5. TAPE 6. 4 7.12 , LCD 8., 32768Hz 9.3 ,17 LCD 10.2.5V~3.5V 。
、LCD ():
.
AL
FM MW LW
.
MHz LOC LOUD KHz MUTE ST PM TAPE 00
.
COM1 COM2 COM3 LG17 LG16 LG15 LG14 LG13 LG12 LG11 LG10
LG9 LG8 LG7 LG6 LG5 LG4 LG3 LG2 LG1
.
1
2007-12-5
、:
AMVDD GND OSCI
OSCO . BPOWER
VDD HSET
TT 51 52 53 54 55 56 57
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
AMI AFVSS FMI FMVDD CTRL TAPE SW A/F AIF FIF1 FIF2 COM1 COM2 COM3 LG17 LG16 LG15 LG14 LG13 LG12
TEC9902B
.
TEC9902B
30 LG11 29 LG10 28 LG9 27 LG8 26 LG7
.
25 LG6. 24 LG5 23 LG4
MSET 1 CLAL 2 AL-EN 3 TIMSEL 4
D1 5 D2 6 D3 7 D4 8 D5 9 D6 10 D7 11 D8 12 D9 13 D10 14 D11 15 D12 16 VIN 17 ALARM 18 ALMOUTH 19 LG1 20 LG2 21 LG3 22
.
1 2 3 4
5~14 15、16
17
18
19
20~36
37~39 40、41
42 43
44
I/O
MSET
INU ,
CLAL
IND //
ALM-EN IND /
TIMSEL
IN 12/24 , 12
DIN1~DIN10 IND ,
DIN11、DIN112 IND ,
VIN
ALARMOUT
ALMOUTH LSEG1~ LSEG17
COM3~COM1
IN OUT OUT OUT OUT
,, 3 , ALM-EN , 1 , ALM-EN
LCD
LCD
FIF2、FIF1 IN FM
AIF IN AM
AF IN FM//AM , FM
SW
IND
, CTRL=‘1’,TAPE=‘0’ AF= ‘0’
2
2007-12-5
TEC9902B
45
TAPE
IND
46
CTRL
IN
47
FM-VDD
IN
48 FMI IN
49
AF-VSS
IN
50
AMI
IN
51
AM-VDD
IN
52
GND
IN
53、54 OSCI、OSCO IN
55
BPOWER
IN
56
VDD
IN
57
...
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