SAA7370 Datasheet, PDF (22/60 Pages) NXP Semiconductors – Digital servo processor and Compact Disc decoder CD7

Philips Semiconductors
Digital servo processor and
Compact Disc decoder (CD7)
Product specification
SAA7370
7.13.1.3 PWM output mode (4-line)
Using two extra outputs from the versatile pins Interface, it is possible to use the SAA7370 with a 4-input motor bridge.
The timing is illustrated in Fig.16. A typical application diagram is illustrated in Fig.17.
MOTO1
MOTO2
V4
V5
t _rep = 45 µs
Accelerate
tdead 240 ns
t _ovl = 240 ns
Brake
MGA367 - 1
Fig.16 4-line PWM mode timing.
+
V4
V5
MOTO1
M
10 Ω
100 nF
MOTO2
VSS
MGA364 - 2
Fig.17 Motor 4-line PWM mode application diagram.
1998 Feb 26
22