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PDF SM8707F Data sheet ( Hoja de datos )
| Número de pieza | SM8707F | |
| Descripción | Clock Generator | |
| Fabricantes | NPC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SM8707F (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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SM8707E/F
Clock Generator with Dual PLLs
OVERVIEW
The 8707E/F 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
■ Low current consumption: 35mA typ.
(VDD=3.3V, all outputs with no load)
■ 27MHz master clock
(internal PLL reference clock)
■ Generated clocks
Video system output
Audio system output
Signal processor
system output
SM8707E
27.0000MHz
512fs
33.8688MHz
■ PLL loop filter built-in
■ Crystal oscillator circuit built-in
■ Sampling frequency fs: 44.1/48kHz
■ 16-pin VSOP package (Pb free)
SM8707F
27.0000MHz
768fs
16.9344MHz
33.8688MHz
■ Low jitter output (1-sigma output load capacitance typical values)
Video system output
Audio and Signal
processor
system output
SM8707E
20ps
55ps
SM8707F
20ps
40ps
APPLICATIONS
■ DVD players/recorders
■ DVD car navigation system
PACKAGE DIMENSIONS
(Unit : mm)
Weight: 0.07g
ORDERING INFOMATION
Device
Package
SM8707EV
SM8707FV
16pin VSOP
SEIKO NPC CORPORATION - 1
1 page  
SM8707E/F
DC Electrical Characteristics
■ SM8707E
fXTAL=27.0000MHz, VDD=3.3V ± 0.3V, VSS=0V, Ta=-10 to +75C unless otherwise noted.
■ SM8707F
fXTAL=27.0000MHz, VDD=3.3V ± 0.3V, VSS=0V, Ta=-40 to +85C unless otherwise noted.
Parameter Symbol
Pins
Condition
MIN
Rating
TYP
Current
consumption
IDD VDD
VDD=3.3V,Ta=25℃,fs=48kHz,
Crystal oscillator connected,
no load on all outputs
-
35
Input voltage
VIH FSEL,XTI
VIL
VDD=3.3V
Input current
IIH1 FSEL*1
IIL1
IIH2 XTI
IIL2
VIN=VDD
VIN=0V
VIN=VDD
VIN=0V
Output voltage VOH All outputs
IOH=-2mA
VOL excluding XTO IOL=2mA
0.8VDD
-
-
-100
-
-40
VDD-0.4
-
-
-
-
-
-
-
-
-
*1. FSEL pin has Schmitt-trigger input and built-in pull-up resistor.
MAX
45
-
0.2VDD
1
-
40
-
-
0.4
Unit
mA
V
A
V
SEIKO NPC CORPORATION - 5
5 Page 
SM8707E/F
SM8707E/F OUTPUT FREQUENCY LISTING
Version
FSEL
polarity
(Pin 14)
H
Sampling
frequency fs
[kHz]
48.0
SM8707E
L
44.1
Output load capacitance [pF]
Pin name
H 44.1
SM8707F
L
48.0
Output load capacitance [pF]
Pin name
Output clock frequency [MHz]
Pin 3
27.0000
27.0000
40
MO1
27.0000
27.0000
25
MO1
Pin 4
27.0000
27.0000
25
MO2
-
-
NC
Pin 9
24.5760
(512fs)
22.5792
(512fs)
15
AO1
33.8688
(768fs)
36.8640
(768fs)
15
AO1
Pin 10
24.5760
(512fs)
22.5792
(512fs)
15
AO2
33.8688
(768fs)
36.8640
(768fs)
15
AO2
Pin 13
33.8688
33.8688
15
SO1
16.9344
16.9344
25
SO1
Pin 15
33.8688
33.8688
15
SO2
33.8688
33.8688
25
SO2
SEIKO NPC CORPORATION - 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet SM8707F.PDF ] | |
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