AD6392 Interpion, AD6392 Datasheet - Page 10

• Manufacturer Part Number: AD6392
• Description: 4 Ch Motor Drive IC
• Manufacturer: Interpion

April. 2002
- CH4 spindle drive part
APPLICATION SUMMARY (Continued)
CH4 drive part is composed V-I converter and output power amplifiers.
- The V-I converter converts the input voltage applied to pin24 into a incremental output current given
- These sourcing and sinking output current from V-I converter are delivered to output power amplifiers,
- The differential voltage gain is, then, calculated as follows:
by
where they are appeared as differential output voltages given as:
di
DOR
DOF
=
Avf
(Rev.0)
Vout
Vin
100K
=
=
=
-
Pref
Pref
=
Vref
20log
DOF
=
di
di
DVout
-
DVin
100K
*
DOR
*
Vin
170K
170K
=
V-I converter
Fig. 7 CH4 spindle drive part
=
2
20log
*
di
www.interpionsemi.com
*
170K
Vin
2
*
100K
170K
=
Vin
4-CH MOTOR DRIVE IC
-
=
Vref
10.6dB
AD6392
Output Power AMP
* Vin = input voltage of pin24
*Vref = reference voltage (pin23 or pin25)
- 10 -