3 - 2
Pin Name I/O Description
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70 *SPPOL O Spindle motor drive signal output (Polarity output)
71 PMCK O 88.2-KHz clock signal output
72 *NCLDCK O Frame sync signal output f=7.35kHz (Normal-speed playback)
73 *SUBC O Subcode serial output
74 *SBCK I Subcode serial output clock input
75 NTEST I Test input pin Normal: H
76 X2 O Crystal oscillator output pin f=16.9344 MHz
77 X1 I Crystal oscillator input pin f=16.9344 MHz
78 DVSS1 I Ground for digital circuits
79 DVDD1 I Power supply for digital circuits
80 *EXT2 I Expansion I/O part 2
AN8789FB– SILICON MONOLITHIC BIPOLAR IC
Pin Name Description
–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
1 VSEN Empty detection input
2PVCC1 Power supply
3 RESET Reset output
4 DED Dead time input
5 OUT CD/DC converter output
6 FB Error amplifier output
7 IN Error amplifier input
8 SPRO Short-circuit protection input
9 CT Triangular wave oscillation
10 AREF 1/2 AVDD output
11 CRIP Ripple rejection capacitor
12 SVCC Power supply
13 N.C. Not connected
14 AVDD Ripple filter output
15 DRVDD Power supply
16 VREF 1/2 VDCC input
17 INFO Driver input
18 INTR Driver input
19 LDON Driver ON/OFF control
20 INSP Driver input
21 PC Driver IN/OFF control
22 INTV Driver input
23 TRVSTOP Driver ON/OFF control
24 TR- Driver output
25 TR+ Driver output
26 FO- Driver output
27 FO+ Driver output
28 PGND Ground
29 SP+ Driver output
30 SP- Driver output
31 TV+ Driver output
32 TV- Driver output
33 ICONT Charge current setting
34 MRST Muting reset output
35 EMP Empty detection output
36 VC Driver supply voltage
37 TB PWM circuit output
38 CLK External sync input
39 START Start oscillation starting input
40 POWER Power ON/OFF
41 PVCC2 Power supply
42 IOUT Charging and battery detetion
43 SGND Ground
44 PWMG PWM loop gain control
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