SMA7029M
Description of pins
Reg Reg
+
- +
- +
- +
- 1pin 6pin 10pin 15pin
Excitation input Active H Active L OUT A OUT A OUT A OUT A OUT B OUT B OUT B OUT B
GNDA
GNDB
REFA
REFB
RSB 9
TDA s Diagram of Standard External Circuit (Remended Circuit Constants)
VCC (46V max) +
Excitation signal time chart 2-phase excitation clock IN A IN B 0 H L 1 H H 2 L H 3 L L 0 H L 1 H H
1-2 phase excitation
Vb (5V) 8 VS 1 6 10 15 INA 2 11 C1 C2 Td A Td B RSA REFA REFB RSB 7 3 13 9 C3 Rs Open collector C4 Rs GA 4 5 INA r3 r4 r1
INB GB 12
INB clock IN A td A IN B td B
0 H L L L
1 H L L H
2 H L H L
3 H H H L
4 L L H L
5 L L H H
6 L L L L
7 L H L L
0 H L L L
1 H L L H
2 3 H H L H H H L L r2 q td A and td B are signals before the inverter stage. 510Ω 100Ω (VR) 47k Ω 47k Ω 2.4k Ω 2.4k Ω 330 to 500p F 330 to 500p F 2200p F 2200p F 1.8 Ω typ(7022MU) (1 to 2W) 1Ω typ(7029M) r1 : r2 : r3 : r4 : r5 : r6 : C1 : C2 : C3 : C4 : Rs : r5 r6 td A td...
