SM8707 series
Clock Generator with Dual PLLs
OVERVIEW
The SM8707 series are dual-PLL clock generator ICs, using a 27MHz master clock, that generate independent
audio clock, video clock, and signal processor clock outputs needed in DVD player/recorder applications. Each
PLL loop filter and crystal oscillator circuit are built-in and require no external components, resulting in high-
precision clocks. The lineup includes devices that support both 44.1/48kHz audio sampling frequencies (fs),
switchable using a control pin. The sampling frequency can be switched during operation without generating
any output spike noise.
FEATURES
I
I
I
I
Supply voltage: 3.0 to 3.6V
I
PLL loop filter built-in
Low current consumption: 35mA typ.
I
Crystal oscillator circuit built-in
(V
DD
= 3.3V, all outputs with no load)
I
Sampling frequency fs: 44.1/48kHz
27MHz master clock
I
16-pin VSOP package (Pb free)
(internal PLL reference clock)
Generated clocks (Refer to “Output Frequency Listing” on page 18 for details.)
SM8707D
Video system
output
Audio system
output
Signal processor
system output
27.0000MHz
512fs
768fs
1
384fs
1
16.9344MHz
33.8688MHz
SM8707E
27.0000MHz
512fs
SM8707F
27.0000MHz
768fs
SM8707G
27.0000MHz
−
SM8707H
27.0000MHz
512fs
16.9344MHz
33.8688MHz
36.8640MHz
SM8707K
−
768fs
18.4320MHz
24.5760MHz
33.8688MHz
36.8640MHz
SM8707L
27.0000MHz
768fs
33.8688MHz
16.9344MHz
33.8688MHz
33.8688MHz
24.5760MHz
33.8688MHz
1. 384fs (fs
=
44.1kHz)/768fs (fs
=
48kHz)
I
Low jitter output (1-sigma output load capacitance typical values)
SM8707D
SM8707E
20ps
55ps
SM8707F
20ps
40ps
SM8707G
20ps
40ps
SM8707H
20ps
70ps
SM8707K
−
60ps
SM8707L
20ps
60ps
Video system
output
Audio and Signal
processor
system output
20ps
70ps
APPLICATIONS
I
I
PACKAGE DIMENSIONS
(Unit: mm)
Weight: 0.07g
DVD players/recorders
DVD car navigation system
ORDERING INFORMATION
SM8707DV
SM8707EV
SM8707FV
SM8707GV
SM8707HV
SM8707KV
SM8707LV
0.65
4.4 0.2
6.4 0.2
Device
Package
0.10 0.05
16-pin VSOP
5.1 0.2
1.15 0.1
0.275typ
.05
0.15
- 0
+ 0.1
0 to 10
0.10
0.22
−
0.05
+ 0.1
0.12
M
0.5 0.2
SEIKO NPC CORPORATION —1
SM8707 series
PINOUT
(Top view)
D
E
SM8707
F
G
VDD1
VSS1
H
K
L
1
16
L
K
H
SM8707
G
F
NC2
E
D
SO2 SO4 SO3 NC1 SO2 SO2 SO2
FSEL FSEL FSEL NC2 FSEL FSEL FSEL
SO1 SO3 SO2 SO3 SO1 SO1 SO1
VDD3
VSS3
AO2 AO1 AO1 SO2 AO2 AO2 AO2
8
9
AO1 SO2 SO1 SO1 AO1 AO1 AO1
MO1 MO1 MO1 MO1 MO1 NC1 MO1
MO2 MO2 NC1 NC1 MO2 SO1 MO2
VDD2
VSS2
XTI
XTO
PIN DESCRIPTION
Name
MO×
AO×
SO×
FSEL
XTI
XTO
VDD1
VSS1
VDD2
VSS2
VDD3
VSS3
NC1
NC2
I/O
O
O
O
I
I
O
–
–
–
–
–
–
O
I
Video system output
Audio system output
Signal processor system output
Sampling frequency select
Crystal oscillator connection or external clock input
Crystal oscillator connection
Supply for digital block
Ground for digital block
Supply for analog block
Ground for analog block
Supply for digital block
Ground for digital block
No connection output (leave pin open circuit)
No connection (leave pin open circuit or connect to VDD)
Description
SEIKO NPC CORPORATION —2
SM8707 series
BLOCK DIAGRAM
FSEL (NC: SM8707G)
XTI
XTO
Reference
Divider 0
X'tal
OSC
Phase
Detector 0
Charge
Pump 0
LPF 0
VCO 0
AO (NC: SM8707G)
Loop
Divider 0
SO
Reference
Divider 1
Phase
Detector 1
Charge
Pump 1
LPF 1
VCO 1
Control
Logic
Loop
Divider 1
MO (NC: SM8707K)
SEIKO NPC CORPORATION —3
SM8707 series
Note: Unless otherwise noted, VDD applies to VDD1, VDD2, and VDD3. Similarly, VSS applies to VSS1,
VSS2, and VSS3.
SPECIFICATIONS
Absolute Maximum Ratings
Parameter
Supply voltage range
Supply voltage deviation
Input voltage range
Output voltage range
Power dissipation
Storage temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
V
DD1
– V
DD2
,
V
DD1
– V
DD3
,
V
DD2
– V
DD3
V
IN
V
OUT
P
D
T
stg
Condition
Rating
−
0.3 to + 6.5
± 0.1
−
0.3 to V
DD
+
0.3
−
0.3 to V
DD
+
0.3
165
−
55 to + 125
Unit
V
V
V
V
mW
°C
Recommended Operating Conditions
V
SS
= V
SS1
= V
SS2
= V
SS3
= 0V unless otherwise noted.
Note 1: The supply voltage is defined relative to V
SS
= 0V.
Note 2: The supply voltages applied on VDD1, VDD2, and VDD3 should be derived from a common supply
source.
Note 3: If the supply voltages on VDD1, VDD2, and VDD3 are from different sources, they should be applied
simultaneously. The SM8707 may be damaged if the supply voltage timing is different.
SM8707D
Rating
Parameter
Supply voltage ranges
Output load capacitance 1
Output load capacitance 2
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L1
C
L2
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
MO1, MO2, SO1, SO2 outputs
AO1, AO2 outputs
When using crystal oscillator
+ 3.0
–
–
–
– 40
typ
–
–
–
27.0000
–
max
+ 3.6
25
15
–
+ 85
V
pF
pF
MHz
°C
Unit
SM8707E
Rating
Parameter
Supply voltage ranges
Output load capacitance 1
Output load capacitance 2
Output load capacitance 3
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L1
C
L2
C
L3
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
MO1 output
MO2 output
SO1, SO2, AO1, AO2 outputs
When using crystal oscillator
+ 3.0
–
–
–
–
– 10
typ
–
–
–
–
27.0000
–
max
+ 3.6
40
25
15
–
+ 75
V
pF
pF
pF
MHz
°C
Unit
SEIKO NPC CORPORATION —4
SM8707 series
SM8707F
Rating
Parameter
Supply voltage ranges
Output load capacitance 1
Output load capacitance 2
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L1
C
L2
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
MO1, SO1, SO2 outputs
AO1, AO2 outputs
When using crystal oscillator
+ 3.0
–
–
–
– 40
typ
–
–
–
27.0000
–
max
+ 3.6
25
15
–
+ 85
V
pF
pF
MHz
°C
Unit
SM8707G
Rating
Parameter
Supply voltage ranges
Output load capacitance 1
Output load capacitance 2
Output load capacitance 3
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L1
C
L2
C
L3
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
MO1 output
SO3 output
SO1, SO2 outputs
When using crystal oscillator
+ 3.0
–
–
–
–
– 10
typ
–
–
–
–
27.0000
–
max
+ 3.6
40
25
15
–
+ 75
V
pF
pF
pF
MHz
°C
Unit
SM8707H
Rating
Parameter
Supply voltage ranges
Output load capacitance 1
Output load capacitance 2
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L1
C
L2
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
MO1, MO2, SO2, SO3 outputs
AO1, SO1 outputs
When using crystal oscillator
+ 3.0
–
–
–
– 40
typ
–
–
–
27.0000
–
max
+ 3.6
25
15
–
+ 85
V
pF
pF
MHz
°C
Unit
SM8707K
Rating
Parameter
Supply voltage ranges
Output load capacitance
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
Outputs
When using crystal oscillator
+ 3.0
–
–
– 40
typ
–
–
27.0000
–
max
+ 3.6
25
–
+ 85
V
pF
MHz
°C
Unit
SM8707L
Rating
Parameter
Supply voltage ranges
Output load capacitance
Master clock frequency
Operating temperature range
Symbol
V
DD1
, V
DD2
, V
DD3
C
L
f
XTAL
T
opr
Condition
min
(Note 1, 2, 3)
Outputs excluding XTO
When using crystal oscillator
+ 3.0
–
–
– 40
typ
–
–
27.0000
–
max
+ 3.6
15
–
+ 85
V
pF
MHz
°C
Unit
SEIKO NPC CORPORATION —5
DSP 与 ARM 处理器
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