SANYO LC78632

Ordering number : EN*5826
CMOS LSI
LC78632RE
Compact Disk Player DSP
Preliminary
Overview
Package Dimensions
The LC78632RE is a compact disc D/A signal-processing
LSI for Video-CD players that provides a variable clock
error correction (VCEC) mode. The LC78632RE
demodulates the EFM signal from the optical pickup and
performs de-interleaving, error detection, error correction,
digital filtering, and other processing. The LC78632RE
includes an on-chip 1-bit D/A converter, and executes
commands sent from a control microprocessor.
unit: mm
3174-QFP80E
[LC78632RE]
Features
• VCEC support
• Built-in PLL circuit for EFM detection (supports 4×
playback)
• 18KB RAM on chip
• Error detection and correction (corrects two errors in C1
and four errors in C2)
• Frame jitter margin: ±8 frames
• Frame synchronization signal detection, protection, and
insertion
• Dual interpolation adopted in the interpolation circuit.
• EFM data demodulation
• Subcode demodulation
• Zero-cross muting adopted
• Servo command interface
• 2fs digital filter
• Digital de-emphasis
• Built-in independent left- and right-channel digital
attenuators (239 attenuation steps)
• Supports the bilingual function
• Left/right swap function
• Built-in 1-bit D/A converter (third-order ∆∑ noise
shaper, PWM output)
• Built-in digital output circuit
• CLV servo
• Arbitrary track jumping (of up to 255 tracks)
• Variable sled voltage (four levels)
• Six extended I/O ports and 2 extended output ports
• Built-in oscillator circuit using an external 16.9344 MHz
or 33.8688 MHz (for 4× playback) element
• Supply voltage: 4.5 to 5.5 V
SANYO: QFP80E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3097HA (OT) No. 5826-1/9
LC78632RE
Equivalent Circuit Block Diagram
No. 5826-2/9
LC78632RE
Pin Assignment
LC78632RE
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Symbol
Maximum supply voltage
Conditions
Ratings
VDD max
Input voltage
Output voltage
Allowable power dissipation
Unit
–0.3 to +7.0
V
VIN
–0.3 to VDD + 0.3
V
VOUT
–0.3 to VDD + 0.3
Pd max
470
V
mW
Operating temperature
Topr
–30 to +75
°C
Storage temperature
Tstg
–40 to +125
°C
Allowable Operating Ranges at Ta = 25°C, VSS = 0 V
Parameter
Supply voltage
Input high-level voltage
Input low-level voltage
Data setup time
Data hold time
Symbol
Conditions
min
typ
max
Unit
VDD
VDD, AVDD, XVDD, LVDD, RVDD
VIH1
TEST1 to TEST5, TAI, HFL, TES, P0/DFCK, P1/DFIN,
P2, P3/DFLR, P4, P5, SBCK, RWC, COIN, CQCK,
RES, CS, XIN, DEFI
VIH2
EFMI
VIL1
TEST1 to TEST5, TAI, HFL, TES, P0/DFCK, P1/DFIN,
P2, P3/DFLR, P4, P5, SBCK, RWC, COIN, CQCK,
RES, CS, XIN, DEFI
VIL2
EFMI
tSU
COIN, RWC: Figures 1 and 4
400
ns
tPRS
RWC: Figure 4
100
ns
tHD
COIN, RWC: Figures 1 and 4
400
ns
4.5
5.0
5.5
V
0.7 VDD
VDD
V
0.6 VDD
VDD
V
0
0.3 VDD
V
0
0.4 VDD
V
Continued on next page.
No. 5826-3/9
LC78632RE
Continued from preceding page.
Parameter
Symbol
Conditions
min
High-level clock pulse width
tWH
SBCK, CQCK: Figures 1, 2, 3, and 4
400
Low-level clock pulse width
tWL
SBCK, CQCK: Figures 1, 2, 3, and 4
400
Data read access time
tRAC
SQOUT, PW: Figures 2, 3, and 4
Command transfer time
tRWC
RWC: Figures 1 and 4
Subcode Q read enable time
tSQE
typ
ns
0
400
1000
ns
ns
WRQ: Figure 2, with no RWC signal
11.2
tSC
SFSY: Figure 3
136
Subcode read enable
tSE
SFSY: Figure 3
Input level
Unit
ns
Subcode read cycle
Port output delay time
max
ms
µs
400
ns
tPD
CONT1, CONT2, P0 to P5: Figure 5
VEI
EFMI
1.0
Vp-p
VXI
XIN: Capacitance coupled input
1.0
Vp-p
1200
ns
Note: Due to the structure of this IC, the identical voltage must be applied to all power-supply pins.
Electrical Characteristics at Ta = 25°C, VDD = 5 V, VSS = 0 V
Parameter
Current drain
Input high-level current
Input low-level current
Output high-level voltage
Output low-level voltage
Symbol
Sled output voltage
min
typ
max
Unit
Normal-speed playback
IIH1
EFMI, HFL, TES, SBCK, RWC, COIN, CQCK, RES,
DEFI: VIN = 5 V
IIH2
TAI, TEST1 to TEST5, CS: VIN = 5 V
25
TAI, EFMI, HFL, TES, SBCK, RWC, COIN, CQCK, RES,
TEST1 to TEST5, CS, DEFI: VIN = 0 V
–5
µA
IIL
30
mA
5
µA
75
µA
VOH1
EFMO, CLV+, CLV–, V/P, PCK, FSEQ, TOFF, TGL,
THLD, JP+, JP–, EMPH, EFLG, FSX
IOH = –1 mA
4
V
VOH2
MUTEL, MUTER, LRCKO, DFLRO, DACKO, P0/DFCK,
P1/DFIN, P2, P3/DFLR, P4, P5, LRSY, CK2, ROMXA,
C2F, SBSY, PW, SFSY, WRQ, SQOUT, 16M, 4.2M,
CONT1, CONT2: IOH = –0.5 mA
4
V
VOH3
VPDO: IOH = –1 mA
4.5
V
VOH4
DOUT: IOH = –12 mA
4.5
V
VOH5
LCHP, RCHP, LCHN, RCHN: IOH = –1 mA
3.0
VOL1
EFMO, CLV+, CLV–, V/P, PCK, FSEQ, TOFF, TGL,
THLD, JP+, JP–, EMPH, EFLG, FSX
IOL = 1 mA
VOL2
MUTEL, MUTER, LRCKO, DFLRO, DACKO, P0/DFCK,
P1/DFIN, P2, P3/DFLR, P4, P5, LRSY, CK2, ROMXA,
C2F, SBSY, PW, SFSY, WRQ, SQOUT, 16M, 4.2M,
CONT1, CONT2: IOL = 2 mA
4.5
V
1
V
0.4
V
VOL3
VPDO: IOL = 1 mA
0.5
V
VOL4
DOUT: IOL = 12 mA
0.5
V
VOL5
LCHP, RCHP, LCHN, RCHN: IOL = 1 mA
2.0
V
IOFF1
PDO1, PDO2, VPDO, P0/DFCK, P1/DFIN,
P2, P3/DFLR, P4, P5: VOUT = 5 V
5
µA
IOFF2
PDO1, PDO2, VPDO, P0/DFCK, P1/DFIN,
P2, P3/DFLR, P4, P5: VOUT = 0 V
IPDOH
PDO1, PDO2: RISET = 68 kΩ
–96
–80
–64
µA
IPDOL
PDO1, PDO2: RISET = 68 kΩ
64
80
96
µA
VSLD1
1.0
1.25
1.5
V
VSLD2
2.25
2.5
2.75
V
VSLD3
3.5
3.75
4.0
V
VSLD4
4.75
Output off leakage current
Charge pump output current
Conditions
IDD
0.5
–5
µA
V
No. 5826-4/9
LC78632RE
D/A Converter Analog Characteristics at Ta = 25°C, VDD = 5 V, VSS = 0 V
Parameter
Total harmonic distortion
Symbol
THD + N
Conditions
min
LCHP, LCHN, RCHP, RCHN; 1 kHz: 0 dB input,
using a 20-kHz low-pass filter (AD725D built in)
typ
max
Unit
0.006
%
90
dB
Dynamic range
DR
LCHP, LCHN, RCHP, RCHN; 1 kHz: –60 dB input, using
the 20-kHz low-pass filter (A filter (AD725D built in))
Signal-to-noise ratio
S/N
LCHP, LCHN, RCHP, RCHN; 1 kHz: 0 dB input, using
the 20-kHz low-pass filter (A filter (AD725D built in))
98
100
dB
Crosstalk
CT
LCHP, LCHN, RCHP, RCHN; 1 kHz: 0 dB input,
using a 20-kHz low-pass filter (AD725D built in)
96
98
dB
Note: Measured in normal-speed playback mode in a Sanyo 1-bit D/A converter block reference circuit, with the digital attenuator set to EE (hexadecimal).
Figure 1 Command Input
Figure 2 Subcode Q Output
Figure 3 Subcode Output
No. 5826-5/9
LC78632RE
Figure 4 General-Purpose Port Read
Figure 5 General-Purpose Port Output
No. 5826-6/9
LC78632RE
LC78632RE
One-Bit D/A Converter Output Block Reference Circuit
No. 5826-7/9
LC78632RE
Pin Functions
Pin No.
Symbol
I/O
1
VPDO
O
Test output
Function
2
PDO2
O
Double-speed and quad-speed mode playback PLL charge pump output. Must be left open if unused.
3
PDO1
O
Normal-speed mode playback PLL charge pump output
4
AVSS
5
FR
6
AVDD
Analog system power supply
7
ISET
PDO1 and PDO2 output current setting resistor connection
Analog system ground. Must be connected to 0 V.
Built-in VCO frequency range setting resistor connection
8
TAI
I
Test input. A pull-down resistor is built in. Must be connected to 0 V.
9
EFMO
O
EFM signal output
10
VSS
11
EFMI
I
EFM signal input
12
TEST1
I
Test input. A pull-down resistor is built in. Must be connected to 0 V.
13
CLV+
O
14
CLV–
O
Spindle servo control output. CLV+ outputs a high level for acceleration, and CLV– outputs a high level for
deceleration.
15
V/P
O
Rough servo/phase control automatic switching monitor output. A high-level output indicates rough servo, and a
low-level output indicates phase control.
Test input. A pull-down resistor is built in. Must be connected to 0 V.
Digital system ground. Must be connected to 0 V.
16
TEST2
I
17
TEST3
I
18
P4
I/O
19
HFL
I
Track detection signal input. This is a Schmitt input.
20
TES
I
Tracking error signal input. This is a Schmitt input.
21
PCK
O
EFM data playback bit clock monitor. Outputs 4.3218 MHz when the phase is locked in normal-speed mode
playback.
22
FSEQ
O
Synchronization signal detection output. Outputs a high level when the synchronization signal detected from the
EFM signal matches the internally generated synchronization signal.
Tracking off output
Test input. A pull-down resistor is built in. Must be connected to 0 V.
I/O port
23
TOFF
O
24
TGL
O
Tracking gain switching output. Increase the gain when this pin outputs a low level.
25
THLD
O
Tracking hold output
I
Test input. A pull-down resistor is built in. Must be connected to 0 V.
26
TEST4
27
VDD
28
JP+
O
Digital system power supply
29
JP–
O
30
SLD+
O
31
SLD–
O
Track jump output. JP+ outputs a high level both for acceleration during outward direction jumps and for
deceleration during inward direction jumps. JP– outputs a high level both for acceleration during inward direction
jumps and for deceleration during outward direction jumps.
Sled output. This pin can be set to 1 of 4 levels by commands sent from the system control microprocessor.
32
EMPH
O
De-emphasis monitor. A high level indicates that a disk requiring de-emphasis is being played.
33
P5
I/O
I/O port
34
LRCKO
O
35
DFLRO
O
36
DACKO
O
37
CONT1
O
Output port
38
P0/DFCK
I/O
I/O port. DF bit clock input in antishock mode.
39
P1/DFIN
I/O
I/O port. DF data input in antishock mode.
LR clock output
Digital filter outputs
LR data output. The digital filter can be turned off with the DFOFF command.
Bit clock output
40
P2
I/O
I/O port. Used as the de-emphasis filter on/off switching pin in antishock mode. The de-emphasis filter is turned
on when this pin is high.
I/O port output or digital filter LR clock input (when anti-shock mode)
41
P3/DFLR
I/O
42
LRSY
O
43
CK2
O
LR clock output
Bit clock output. The polarity can be inverted with the CK2CON command.
ROMXA pins
45
C2F
O
Interpolated data output. Data that has not been interpolated can be output by issuing
the ROMXA command.
C2 flag output
46
MUTEL
O
Left channel mute output
47
LVDD
48
LCHP
O
One-bit D/A
Left channel P output
49
LCHN
O
converter pins
Left channel N output
44
ROMXA
O
Left channel power supply
50
LVSS
Left channel ground. Must be connected to 0V.
Note:
Of the general-purpose I/O ports, any unused input ports must be connected to 0 V, or set to be output ports.
Continued on next page.
No. 5826-8/9
LC78632RE
Continued from preceding page.
Pin No.
Symbol
51
XVSS
I/O
52
XOUT
O
53
XIN
I
Function
Crystal oscillator ground. Must be connected to 0 V.
16.9344 MHz crystal oscillator connections. Use a 33.8688 MHz crystal oscillator for quad-speed playback.
54
XVDD
55
RVSS
56
RCHN
O
57
RCHP
O
58
RVDD
59
MUTER
O
60
SBSY
O
Subcode block synchronization signal output
61
EFLG
O
C1 and C2 error correction state monitor
62
PW
O
Subcode P, Q, R, S, T, U, V, and W output
63
SFSY
O
Subcode frame synchronization signal output. Falls when the subcode output goes to the standby state.
64
SBCK
I
Subcode readout clock input. This is a Schmitt input. This pin must be connected to 0 V if unused.
65
DOUT
O
Digital output
66
FSX
O
Outputs a 7.35 kHz synchronization signal generated by dividing the crystal oscillator frequency.
67
WRQ
O
Subcode Q output standby output
68
RWC
I
Read/write control input
69
SQOUT
O
Subcode Q output
70
COIN
I
Input for commands from the control microprocessor
71
CQCK
I
Command input acquisition clock. Also used as the SQOUT subcode readout clock input. This is a Schmitt input.
72
RES
I
Chip reset input. This pin must be set low temporarily when power is first applied.
73
TESTF
O
Test output
74
CONT2
O
Output port
75
16M
O
16.9344 MHz output
76
4.2M
O
4.2336 MHz output
77
TEST5
I
Test input. A pull-down resistor is built in. Must be connected to 0 V.
78
CS
I
Chip select input. A pull-down resistor is built in. When control is not used, this pin must be connected to 0 V.
79
DEFI
I
Defect detection signal input. Must be connected to 0 V if unused.
Crystal oscillator power supply
Right channel ground. Must be connected to 0 V.
Right channel N output
One-bit D/A
converter pins
Right channel P output
Right channel power supply
Right channel mute output
80
VCOC
I
Test input. Must be connected to 0 V.
Note:
Of the general-purpose I/O ports, any unused input ports must be connected to 0 V, or set to be output ports.
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provide information as of December, 1997. Specifications and information herein are subject to
change without notice.
No. 5826-9/9