Document
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 highprecision 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 PLL loop filter built-in Supply voltage: 3.0 to 3.6V I Crystal oscillator circuit built-in Low current consumption: 35mA typ. (VDD = 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.)
I
I
SM8707D Video system output Audio system output Signal processor system output 27.0000MHz 512fs 768fs1 384fs1 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
NIPPON PRECISION CIRCUITS INC.—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
NIPPON PRECISION CIRCUITS INC.—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)
NIPPON PRECISION CIRCUITS INC.—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 VDD1 , VDD2 , VDD3 VDD1 – VDD2 , VDD1 – VDD3 , VDD2 – VDD3 VIN VOUT PD Tstg Condition Rating − 0.3 to + 6.5 ± 0.1 − 0.3 to VDD + 0.3 − 0.3 to VDD + 0.3 165 − 55 to + 125 Unit V V V V mW °C
Recommended Operating Conditions
VSS = VSS1 = VSS2 = VSS3 = 0V unless otherwise noted. Note 1: The supply voltage is defined relative to VSS = 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 VDD1 , VDD2 , VDD3 CL1 CL2 fXTAL Topr 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 VDD1 , VDD2 , VDD3 CL1 CL2 CL3 fXTAL Topr Condition min (Note 1, 2, 3) MO1 output MO2 output SO1, .