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| BL9148B BL9148B . BL9148B CMOS BL9149 10 BL9150 18 75 63 12 . BL9148B Belling 1.2 CMOS . 2.2V~5.5V CMOS LC . BL9148B DIP16 GND XT XTB K1 K2 K3 K4 K5 1 2 16 15 VDD TxOUT TESTB CODE T3 T2 T1 K6 4 5 6 7 8 BL9148B DIP 16 PIN 3 14 13 12 11 10 9 1 23 4~9 10 ~ 12 GND XTXTB K1 ~ K6 T1 ~ T3 / In Out 455KHz 8/24/2006 Wrote by dipeng http://www.belling.com.cn -1Total 9 Pages BL9148B 13 14 15 16 CODE TESTB Txout VDD / In In Out 12 38KHz . GND 1 VDD 16 XT XTB 2 3 / 15 TxOUT K1 K2 K3 K4 K5 K6 4 5 6 7 8 9 14 TESTB 10 11 12 13 T1 T2 T3 CODE . T = 25 / Txout"1" VDD VIN PD Topr Tstg Iout -2Total 9 Pages 6.0 VSS-0.3~VDD+0.3 200mW -20~75 -55~125 -5 V V mW mA 8/24/2006 Wrote by dipeng http://www.belling.com.cn BL9148B . VDD = 3V , T = 25, K1~K6 CODE K1~K6 CODE TESTB T1~T3 Txout VDD IDD IDS VIH VIL IIH IIL IIH IIL IOH IOL IOH IOL fosc ---- ---- VIH =3V VIL =0V VIH =3V VIL =0V VOH =3V VOL =0V VOH =3V VOL =0V ---- 2.2 -- -- 2.0 0 20 -1.0 -1.0 20 -- 50 -- 1.0 400 3.0 -- -- -- -- 30 -- -- 30 -- -- -- -- 455 5.0 1.0 10 3.0 0.5 60 1.0 1.0 60 -500 -- -0.1 -- 600 V mA A V V A A A A A A A A kHz . CMOS LC 455KHz 38KHz 2 3 2 3 455KHz 100pF K1~K6 T1~T3 6x3 T1 6 1~6 63 T2 T3 7~18 http://www.belling.com.cn -3Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B K1K2K3K4K5K6 K T1T2T3 T1 T2 T3 K1 K2 K3 K4 K5 K6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 (H) (S1) (S2) 12 C1~C3 C1 C2 BL9150 C2 C3 BL9149 0110 11 00 C1 C2 C3 H S1 S2 D1 D2 D3 D4 D5 D6 / T1T2T3 CODE C1C2 C3 "1" "0" BL9150 C3 BL9149 C1 CODE T3 T2 T1 HS1 S2 T1T2 T3 D1~D6 http://www.belling.com.cn -4Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B 1 2 3 4 5 6 7 8 9 H S1 S2 D1 D2 D3 D4 D5 D6 10 11 12 13 14 15 16 17 18 H S1 S2 D1 D2 D3 D4 D5 D6 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 1 1) "0""1" 1/4 "0" 3/4 "1" a BIT"0" 3a 3a BIT"1" a 2) "0""1" 38KHz 455KHz 1/3 http://www.belling.com.cn -5Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B "1" "0" 3) C1C2C3HS1S2D1D2D3D4D5D6 48t t 1/4 t=(1/fosc)x192 1 0 0 1 0 0 1 0 0 0 1 0 4) 60t 48t 80t 48t Txout 5) 208t 60t 48t 80t 48t 208t 48t 80t 48t Txout http://www.belling.com.cn -6Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B . VDD=3V 2SA1015 47uF 2SC1815 10K TLN105 10K 16 VDD 15 14 13 12 Txout TESTBCODE T3 11 T2 10 T1 9 K6 BL9148B GND 1 XT 2 455K XTB 3 K1 4 K2 5 K3 6 K4 7 K5 8 100p x 2 1 K1~K6 2 8 14 3 9 15 4 10 5 11 6 12 Key Matrix 7 13 T1~T3 16 17 18 http://www.belling.com.cn -7Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B http://www.belling.com.cn -8Total 9 Pages 8/24/2006 Wrote by dipeng BL9148B http://www.belling.com.cn -9Total 9 Pages 8/24/2006 Wrote by dipeng |
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