LC78624E Datasheet, PDF (7/27 Pages) Sanyo Semicon Device – Compact Disc Player DSP

LC78624E
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Symbol
DEFI
TAI
PDO
VV_SS
ISET
VV_DD
FR
V_SS
EFMO
EFMIN
TEST2
CLV⁺
CLV^–
V/P
HFL
TES
TOFF
TGL
JP⁺
JP^–
PCK
FSEQ
V_DD
CONT1
CONT2
CONT3
CONT4
CONT5
EMPH
C2F
DOUT
TEST3
TEST4
TEST6
TEST7
LRSY
CK2
ROMXA
SRDT
DQSY
SCLK
TEST8
XV_DD
X_OUT
X_IN
XV_SS
SBSY
EFLG
PW
SFSY
I/O
Function
I Defect detection signal (DEF) input. (Must be connected to 0 V when unused.)
I
Test input. A pull-down resistor is built in. Must be connected to 0 V.
O
External VCO control phase comparator output
–
PLL pins
AI
Internal VCO ground. Must be connected to 0 V.
PDO output current adjustment resistor connection
–
Internal VCO power supply
AI
VCO frequency range adjustment
– Digital system ground. Must be connected to 0 V.
O
Slice level control
I
EFM signal output
EFM signal input
I Test input. A pull-down resistor is built in. Must be connected to 0 V.
O _{Disc motor control output.}
O Three-value output is also possible when specified by microcontroller command.
Rough servo/phase control automatic switching monitor output. Outputs a high level during rough servo and a low level
O _{during phase control.}
I Track detection signal input. This is a Schmitt input.
I Tracking error signal input. This is a Schmitt input.
O Tracking off output
O Tracking gain switching output. Increase the gain when low.
O _{Track jump control output.}
O Three-value output is also possible when specified by microcontroller command.
O EFM data playback clock monitor. Outputs 4.3218 MHz when the phase is locked.
Synchronization signal detection output. Outputs a high level when the synchronization signal detected from the EFM
O _{signal and the internally generated synchronization signal agree.}
– Digital system power supply.
I/O General-purpose I/O pin 1
I/O General-purpose I/O pin 2
I/O General-purpose I/O pin 3
I/O General-purpose I/O pin 4
Controlled by serial data commands from the microcontroller. Any of these that are unused
must be either set up as input ports and connected to 0 V, or set up as output ports and
left open.
I/O General-purpose I/O pin 5
O De-emphasis monitor pin. A high level indicates playback of a de-emphasis disk.
O C2 flag output
O Digital output. (EIAJ format)
I Test input. A pull-down resistor is built in. Must be connected to 0 V.
I Test input. A pull-down resistor is built in. Must be connected to 0 V.
I Test input. A pull-down resistor is built in. Must be connected to 0 V.
O Test output
O
L/R clock output
O _{ROMXA output}
O
Bit clock output
Interpolated data output, not ROM output
O Text data output
O Text readout enable output
I Text shift clock input
O Test output
– Crystal oscillator power supply.
O
Connections for a 16.9344 crystal oscillator element
I
– Crystal oscillator ground. Must be connected to 0 V.
O Subcode block synchronization signal output
O C1, C2, single and double error correction monitor pin
O Subcode P, Q, R, S, T, U, V and W output
O Subcode frame synchronization signal output. This signal falls when the subcodes are in the standby state.
Continued on next page.
No. 5811-7/27