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
ꢀ Supply voltage: 3.0 to 3.6V
ꢀ PLL loop filter built-in
ꢀ Low current consumption: 35mA typ.
ꢀ Crystal oscillator circuit built-in
ꢀ Sampling frequency fs: 44.1/48kHz
ꢀ 16-pin VSOP package (Pb free)
(V = 3.3V, all outputs with no load)
DD
ꢀ 27MHz master clock
(internal PLL reference clock)
ꢀ Generated clocks (Refer to “Output Frequency Listing” on page 18 for details.)
SM8707D
27.0000MHz
512fs
SM8707E
SM8707F
SM8707G
SM8707H
SM8707K
SM8707L
Video system
output
27.0000MHz
27.0000MHz
27.0000MHz
27.0000MHz
−
27.0000MHz
Audio system
output
1
768fs
384fs
512fs
768fs
−
512fs
768fs
768fs
1
18.4320MHz
24.5760MHz
33.8688MHz
36.8640MHz
16.9344MHz
33.8688MHz
36.8640MHz
Signal processor
system output
16.9344MHz
33.8688MHz
16.9344MHz
33.8688MHz
24.5760MHz
33.8688MHz
33.8688MHz
33.8688MHz
1. 384fs (fs = 44.1kHz)/768fs (fs = 48kHz)
ꢀ Low jitter output (1-sigma output load capacitance typical values)
SM8707D
SM8707E
SM8707F
SM8707G
SM8707H
SM8707K
SM8707L
Video system
output
20ps
20ps
20ps
20ps
20ps
−
20ps
Audio and Signal
processor
system output
70ps
55ps
40ps
40ps
70ps
60ps
60ps
APPLICATIONS
PACKAGE DIMENSIONS
(Unit: mm)
ꢀ DVD players/recorders
ꢀ DVD car navigation system
Weight: 0.07g
ORDERING INFORMATION
Device
Package
SM8707DV
SM8707EV
SM8707FV
SM8707GV
SM8707HV
SM8707KV
SM8707LV
+ 0.1
0.15
- 0.05
0.275typ
5.1 0.2
16-pin VSOP
0 to 10
0.65
0.10
+ 0.1
0.22− 0.05
0.12 M
0.5 0.2
NIPPON PRECISION CIRCUITS INC.—1