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
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I
I
PLL loop filter built-in
Supply voltage: 3.0 to 3.6V
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Crystal oscillator circuit built-in
Low current consumption: 35mA typ.
(V
DD
= 3.3V, all outputs with no load)
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Sampling frequency fs: 44.1/48kHz
27MHz master clock
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16-pin VSOP package (Pb free)
(internal PLL reference clock)
Generated clocks (Refer to “Output Frequency Listing” on page 18 for details.)
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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)
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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
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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
NIPPON PRECISION CIRCUITS INC.—1