SPC TECHNOLOGY SM8707 Technical data

−

−

−

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

■

Supply voltage: 3.0 to 3.6V

■

Low current consumption: 35mA typ.
(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 SM8707E SM8707F SM8707G SM8707H SM8707K SM8707L

Video system

output

Audio system

output

Signal processor

system output

1. 384fs (fs = 44.1kHz)/768fs (fs = 48kHz)

■

Low jitter output (1-sigma output load capacitance typical values)

27.0000MHz 27.0000MHz 27.0000MHz 27.0000MHz 27.0000MHz

512fs

1

768fs

1

384fs

16.9344MHz

33.8688MHz

512fs 768fs

33.8688MHz

16.9344MHz

33.8688MHz

■

PLL loop filter built-in

■

Crystal oscillator circuit built-in
Sampling frequency fs: 44.1/48kHz

■

16-pin VSOP package (Pb free)

■

512fs 768fs 768fs

18.4320MHz

24.5760MHz

33.8688MHz

36.8640MHz

33.8688MHz

16.9344MHz

33.8688MHz

36.8640MHz

27.0000MHz

24.5760MHz

33.8688MHz

SM8707D SM8707E SM8707F SM8707G SM8707H SM8707K SM8707L

Video system

output

Audio and Signal

processor

system output

20ps 20ps 20ps 20ps 20ps

70ps 55ps 40ps 40ps 70ps 60ps 60ps

APPLICATIONS

■

DVD players/recorders

■

DVD car navigation system

ORDERING INFORMATION

Device Package

SM8707DV

SM8707EV

SM8707FV

SM8707GV

SM8707HV

SM8707KV

SM8707LV

16-pin VSOP

PACKAGE DIMENSIONS

(Unit: mm)

Weight: 0.07g

4.4 0.2

6.4 0.2

0.275typ

5.1 0.2

0.65

+ 0.1

0.22

− 0.05

NIPPON PRECISION CIRCUITS INC.—1

1.15 0.1

0.10 0.05

0.10

M

0.12

0.5 0.2

0.15

+ 0.1

20ps

- 0.05

0 to 10

PINOUT

(Top view)

MO ×

SM8707 series

DE FGHKL

MO1

MO2 MO2

SM8707

VDD1

VSS1

MO1 MO1 MO1 MO1

MO2 SO1

NC1NC1

VDD2

VSS2

XTI

XTO

NC1

1

MO1

MO2

8

PIN DESCRIPTION

Name I/O Description

O Video system output

AO ×

SO ×

FSEL I Sampling frequency select

XTI I Crystal oscillator connection or external clock input

XTO O Crystal oscillator connection

VDD1 – Supply for digital block

VSS1 – Ground for digital block

VDD2 – Supply for analog block

VSS2 – Ground for analog block

VDD3 – Supply for digital block

VSS3 – Ground for digital block

NC1 O No connection output (leave pin open circuit)

NC2 I No connection (leave pin open circuit or connect to VDD)

O Audio system output

O Signal processor system output

16

L

SO2

FSELFSEL FSEL FSEL FSEL FSEL

SO1

AO2

AO1 AO1

SO2

AO1

9

SM8707

NC1

NC2

SO2

SO3SO3

VDD3

VSS3

SO2

SO1 SO1

NC2

SO2

AO2 AO2 AO2

AO1 AO1 AO1

DEFGHK

SO2SO4 SO3

SO2

SO1SO1SO1

NIPPON PRECISION CIRCUITS INC.—2

BLOCK DIAGRAM

SM8707 series

FSEL (NC: SM8707G)

XTI

XTO

X'tal

OSC

Reference

Divider 0

Reference

Divider 1

Phase

Detector 0

Loop

Divider 0

Phase

Detector 1

Loop

Divider 1

Charge

Pump 0

Charge

Pump 1

LPF 0 VCO 0

LPF 1 VCO 1

Control

Logic

AO (NC: SM8707G)

SO

MO (NC: SM8707K)

NIPPON PRECISION CIRCUITS INC.—3

−

−

+

−

+

−

° C

° C

°

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 Symbol Condition Rating Unit

Supply voltage range V

Supply voltage deviation

Input voltage range V

Output voltage range V

Power dissipation P

Storage temperature range T

DD1

V
V

, V

, V

DD2

DD3

– V
– V

– V

OUT

,

DD2

,

DD3

DD3

IN

D

stg

DD1

DD1

V

DD2

0.3 to + 6.5 V

± 0.1 V

0.3 to V

0.3 to V

0.3 V

DD

0.3 V

DD

165 mW

55 to + 125

Recommended Operating Conditions

V

= V

SS

Note 1: The supply voltage is defined relative to V
Note 2:The supply voltages applied on VDD1, VDD2, and VDD3 should be derived from a common supply

Note 3: If the supply voltages on VDD1, VDD2, and VDD3 are from different sources, they should be applied

SM8707D

Supply voltage ranges V

Output load capacitance 1 C

Output load capacitance 2 C

Master clock frequency f

Operating temperature range T

SM8707E

Supply voltage ranges V

Output load capacitance 1 C

Output load capacitance 2 C

Output load capacitance 3 C

Master clock frequency f

Operating temperature range T

= V

SS1

SS2

= V

= 0V unless otherwise noted.

SS3

SS

= 0V.

source.

simultaneously. The SM8707 may be damaged if the supply voltage timing is different.

Parameter Symbol Condition

, V

DD1

DD2

XTAL

opr

, V

L1

L2

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

MO1, MO2, SO1, SO2 outputs – – 25 pF

AO1, AO2 outputs – – 15 pF

When using crystal oscillator – 27.0000 – MHz

Parameter Symbol Condition

, V

DD1

DD2

XTAL

opr

, V

L1

L2

L3

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

MO1 output – – 40 pF

MO2 output – – 25 pF

SO1, SO2, AO1, AO2 outputs – – 15 pF

When using crystal oscillator – 27.0000 – MHz

min typ max

– 40 – + 85

min typ max

– 10 – + 75

Rating

Rating

Unit

Unit

C

NIPPON PRECISION CIRCUITS INC.—4

SM8707F

SM8707 series

° C

° C

° C

° C

°

Parameter Symbol Condition

Supply voltage ranges V

DD1

Output load capacitance 1 C

Output load capacitance 2 C

Master clock frequency f

Operating temperature range T

SM8707G

Parameter Symbol Condition

Supply voltage ranges V

DD1

Output load capacitance 1 C

Output load capacitance 2 C

Output load capacitance 3 C

Master clock frequency f

Operating temperature range T

SM8707H

Rating

min typ max

, V

DD2

XTAL

opr

, V

L1

L2

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

MO1, SO1, SO2 outputs – – 25 pF

AO1, AO2 outputs – – 15 pF

When using crystal oscillator – 27.0000 – MHz

– 40 – + 85

Rating

min typ max

, V

DD2

XTAL

opr

, V

L1

L2

L3

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

MO1 output – – 40 pF

SO3 output – – 25 pF

SO1, SO2 outputs – – 15 pF

When using crystal oscillator – 27.0000 – MHz

– 10 – + 75

Unit

Unit

Parameter Symbol Condition

Supply voltage ranges V

DD1

Output load capacitance 1 C

Output load capacitance 2 C

Master clock frequency f

Operating temperature range T

SM8707K

Parameter Symbol Condition

Supply voltage ranges V

DD1

Output load capacitance C

Master clock frequency f

Operating temperature range T

SM8707L

Parameter Symbol Condition

Supply voltage ranges V

Output load capacitance C

Master clock frequency f

Operating temperature range T

DD1

Rating

min typ max

, V

DD2

XTAL

opr

, V

L1

L2

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

MO1, MO2, SO2, SO3 outputs – – 25 pF

AO1, SO1 outputs – – 15 pF

When using crystal oscillator – 27.0000 – MHz

– 40 – + 85

Rating

min typ max

, V

DD2

XTAL

opr

, V

L

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

Outputs – – 25 pF

When using crystal oscillator – 27.0000 – MHz

– 40 – + 85

Rating

min typ max

, V

DD2

XTAL

opr

, V

L

(Note 1, 2, 3) + 3.0 – + 3.6 V

DD3

Outputs excluding XTO – – 15 pF

When using crystal oscillator – 27.0000 – MHz

– 40 – + 85

Unit

Unit

Unit

C

NIPPON PRECISION CIRCUITS INC.—5

DC Electrical Characteristics

■

SM8707D/F/H/K/L
f

XTAL

■

SM8707E/G
f

XTAL

= 27.0000MHz, V

= 27.0000MHz, V

= 3.3V ± 0.3V, V

DD

= 3.3V ± 0.3V, V

DD

SM8707 series

= 0V, Ta = – 40 to + 85 ° C unless otherwise noted.

SS

= 0V, Ta = – 10 to + 75 ° C unless otherwise noted.

SS

Parameter Symbol Pins Condition

Current
consumption

Input voltage

Input current

Output voltage

= 3.3V, Ta = 25 ° C,

DD

I

VDD

DD

fs = 48kHz, Crystal
oscillator connected,
no load on all outputs

V

IH

FSEL, XTI V

V

IL

I

IH1

I

IL1

I

IH2

I

IL2

V

OH

V

OL

1

FSEL

XTI

All outputs
excluding XTO

= 3.3V

DD

VIN = V

DD

VIN = 0V – 100 – −

VIN = V

DD

VIN = 0V – 40 – −

I

= − 2mA VDD − 0.4 – –

OH

IOL = 2mA – – 0.4

Excluding
SM8707G

SM8707G – 20 27

V

1. FSEL pin has Schmitt-trigger input and built-in pull-up resistor (SM8707G: NC pin).

Rating

min typ max

–3545

0.8 V

DD

– – 0.2 V

––

DD

––1

––40

Unit

mA

V

µA

V

NIPPON PRECISION CIRCUITS INC.—6

SM8707 series

AC Electrical Characteristics

SM8707D

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

Unit

min typ max

Rating

External input clock

1

frequency

Output clock rise time

Output clock fall time

Output clock jitter

3

Output clock duty cycle

Settling time

Power-up time

2

2, 4

f

2

2

t

(1-sigma)

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

MO1, MO2,
SO1, SO2

t

r

AO1, AO2

MO1, MO2,
SO1, SO2

t

f

AO1, AO2

MO1, MO2

jitter

AO1, AO2 Ta = 25°C, CL = 15pF, VO = 0.5V

MO1, MO2,
SO1, SO2

Dt

AO1, AO2 Ta = 25°C, C

All outputs

t

S

excluding XTO

All outputs

t

P

excluding XTO

CL = 25 pF, transition between VOL =

0.2VDD and VOH = 0.8V

= 15pF, transition between

C

L

V

= 0.2VDD and VOH = 0.8V

OL

DD

DD

CL = 25pF, transition between VOH =

0.8VDD and VOL = 0.2V

= 15pF, transition between

C

L

VOH = 0.8VDD and VOL = 0.2V

Ta = 25°C, C

Ta = 25°C, C

L

L

L

DD

= 25pF, VO = 0.5V

= 25pF, VO = 0.5V

=15 pF, VO = 0.5V

DD

DD

DD

DD

DD

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

–20–

–70–

45 50 55

45 50 55

––1µs

–15ms

ns

ns

psSO1, SO2 – 70 –

%

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

NIPPON PRECISION CIRCUITS INC.—7

SM8707 series

SM8707E

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 10 to + 75 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Output clock rise time

Output clock fall time

f

2

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

= 40 pF, transition between VOL =

C

MO1

t

r

SO1, SO2,
AO1, AO2

MO1

t

f

SO1, SO2,
AO1, AO2

L

0.2VDD and VOH = 0.8V

= 25 pF, transition between VOL =

C

L

0.2VDD and VOH = 0.8V

C

= 15pF, transition between VOL =

L

0.2VDD and VOH = 0.8V

= 40pF, transition between VOH =

C

L

0.8VDD and VOL = 0.2V

= 25pF, transition between VOH =

C

L

0.8VDD and VOL = 0.2V

C

= 15pF, transition between VOH =

L

0.8VDD and VOL = 0.2V

MO1 Ta = 25°C, CL = 40pF, VO = 0.5V

Output clock jitter

3

t

(1-sigma)

MO2 Ta = 25°C, CL = 25pF, VO = 0.5V

jitter

SO1, SO2,
AO1, AO2

Ta = 25°C, C

MO1 Ta = 25°C, C

Output clock duty cycle

Settling time

Power-up time

2

2, 4

2

MO2 Ta = 25°C, CL = 25pF, VO = 0.5V

Dt

SO1, SO2,
AO1, AO2

t

AO1, AO2 – – 1 µs

S

All outputs

t

P

excluding XTO

Ta = 25°C, C

DD

DD

DD

DD

DD

DD

= 15pF, VO = 0.5V

L

= 40pF, VO = 0.5V

L

=15 pF, VO = 0.5V

L

min typ max

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

DD

DD

DD

DD

DD

DD

–20–

–20–

–55–

45 50 55

45 50 55

45 50 55

–15ms

Unit

nsMO2

nsMO2

ps

%

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

NIPPON PRECISION CIRCUITS INC.—8

SM8707 series

SM8707F

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Output clock rise time

Output clock fall time

f

2

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

MO1, SO1,
SO2

t

r

AO1, AO2

MO1, SO1,
SO2

t

f

AO1, AO2

CL = 25 pF, transition between VOL =

0.2VDD and VOH = 0.8V

= 15pF, transition between

C

L

VOL = 0.2VDD and VOH = 0.8V

CL = 25pF, transition between VOH =

0.8VDD and VOL = 0.2V

= 15pF, transition between

C

L

VOH = 0.8VDD and VOL = 0.2V

MO1

Output clock jitter

3

t

jitter

(1-sigma)

Ta = 25°C, C

AO1, AO2 Ta = 25°C, CL = 15pF, VO = 0.5V

Output clock duty cycle

MO1, SO1,

2

SO2

Dt

Ta = 25°C, CL = 25pF, VO = 0.5V

AO1, AO2 Ta = 25°C, C

Settling time

Power-up time

2

2, 4

t

S

t

P

All outputs
excluding XTO

All outputs
excluding XTO

DD

DD

= 25pF, VO = 0.5V

L

=15 pF, VO = 0.5V

L

min typ max

– 2.0 –

DD

– 2.0 –

– 2.0 –

DD

– 2.0 –

–20–

DD

DD

DD

DD

–40–

45 50 55

45 50 55

––1µs

–15ms

Unit

ns

ns

psSO1, SO2 – 40 –

%

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

NIPPON PRECISION CIRCUITS INC.—9

SM8707 series

SM8707G

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 10 to + 75 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Output clock rise time

Output clock fall time

f

2

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

= 40 pF, transition between VOL =

C

MO1

t

r

SO1, SO2

MO1

t

f

SO1, SO2

L

0.2VDD and VOH = 0.8V

= 25 pF, transition between VOL =

C

L

0.2VDD and VOH = 0.8V

= 15pF, transition between VOL =

C

L

0.2VDD and VOH = 0.8V

= 40pF, transition between VOH =

C

L

0.8VDD and VOL = 0.2V

= 25pF, transition between VOH =

C

L

0.8VDD and VOL = 0.2V

= 15pF, transition between VOH =

C

L

0.8VDD and VOL = 0.2V

MO1 Ta = 25°C, C

Output clock jitter

3

t

jitter

(1-sigma)

SO1, SO2 Ta = 25°C, CL = 15pF, VO = 0.5V

MO1 Ta = 25°C, CL = 40pF, VO = 0.5V

Output clock duty cycle

2

Dt

SO1, SO2 Ta = 25°C, CL =15 pF, VO = 0.5V

Power-up time

2, 4

t

P

All outputs
excluding XTO

DD

DD

DD

DD

DD

DD

= 40pF, VO = 0.5V

L

min typ max

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

– 2.0 –

DD

DD

DD

DD

DD

DD

–20–

–40–

–40–

45 50 55

45 50 55

45 50 55

–15ms

Unit

nsSO3

nsSO3

psSO3 Ta = 25°C, CL = 25pF, VO = 0.5V

%SO3 Ta = 25°C, CL = 25pF, VO = 0.5V

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

NIPPON PRECISION CIRCUITS INC.—10

SM8707 series

SM8707H

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Output clock rise time

Output clock fall time

f

2

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

t

t

MO1, MO2,
SO2, SO3

r

SO1, AO1

MO1, MO2,
SO2, SO3

f

SO1, AO1

CL = 25 pF, transition between VOL =

0.2VDD and VOH = 0.8V

= 15pF, transition between

C

L

VOL = 0.2VDD and VOH = 0.8V

CL = 25pF, transition between VOH =

0.8VDD and VOL = 0.2V

= 15pF, transition between

C

L

VOH = 0.8VDD and VOL = 0.2V

MO1, MO2

Output clock jitter

3

t

jitter

(1-sigma)

Ta = 25°C, C

SO1, AO1 Ta = 25°C, CL = 15pF, VO = 0.5V

Output clock duty cycle

MO1, MO2,

2

SO2, SO3

Dt

Ta = 25°C, CL = 25pF, VO = 0.5V

SO1, AO1 Ta = 25°C, C

Settling time

Power-up time

2

2, 4

t

S

t

P

All outputs
excluding XTO

All outputs
excluding XTO

DD

DD

= 25pF, VO = 0.5V

L

=15 pF, VO = 0.5V

L

min typ max

– 2.0 –

DD

– 2.0 –

– 2.0 –

DD

– 2.0 –

–20–

DD

DD

DD

DD

–70–

45 50 55

45 50 55

––1µs

–15ms

Unit

ns

ns

psSO2, SO3 – 70 –

%

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

NIPPON PRECISION CIRCUITS INC.—11

SM8707 series

SM8707K

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Frequency deviation

1

Output clock rise time

Output clock fall time

Output clock jitter

3

Output clock duty cycle

Settling time

Power-up time

2

2, 4

f

2

2

t

(1-sigma)

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

D

jitter

Dt

t

t

f

t

r

t

f

S

P

SO1, SO2, SO3,
SO4, AO1

SO1, SO2, SO3,
SO4, AO1

SO1, SO2, SO3,
SO4, AO1

SO1, SO2, SO3,
SO4, AO1

SO1, SO2, SO3,
SO4, AO1

All outputs
excluding XTO

All outputs
excluding XTO

Applies to external clock input use only,
When frequency deviation of master
clock is 0ppm

CL = 25 pF, transition between VOL =

0.2VDD and VOH = 0.8V

CL = 25pF, transition between VOH =

0.8VDD and VOL = 0.2V

Ta = 25°C, C

Ta = 25°C, C

DD

DD

= 25pF, VO = 0.5V

L

= 25pF, VO = 0.5V

L

min typ max

–15 – +15 ppm

– 2.0 – ns

– 2.0 – ns

DD

DD

–60–ps

45 50 55 %

––1µs

–15ms

Unit

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

NIPPON PRECISION CIRCUITS INC.—12

SM8707 series

SM8707L

f

= 27.0000MHz, VDD = 3.3V ± 0.3V, VSS = 0V, Ta = – 40 to + 85 °C unless otherwise noted.

XTAL

Parameter Symbol Pins Condition

External input clock

1

frequency

Output clock rise time

Output clock fall time

f

2

2

XTI Applies to external clock input use only – 27.0000 – MHz

XTI

t

r

t

f

MO1, MO2, SO1,
SO2, AO1, AO2

MO1, MO2, SO1,
SO2, AO1, AO2

CL = 15 pF, transition between VOL =

0.2VDD and VOH = 0.8V

CL = 15pF, transition between VOH =

0.8VDD and VOL = 0.2V

MO1, MO2

Output clock jitter

3

t

jitter

(1-sigma)

SO1, SO2,

Ta = 25°C, C

AO1, AO2

Output clock duty cycle

Settling time

Power-up time

2

2, 4

2

Dt

t

S

t

P

MO1, MO2, SO1,
SO2, AO1, AO2

All outputs
excluding XTO

All outputs
excluding XTO

Ta = 25°C, C

DD

DD

= 15pF, VO = 0.5V

L

= 15pF, VO = 0.5V

L

min typ max

– 2.0 – ns

– 2.0 – ns

–20–ps

DD

DD

–60–ps

45 50 55 %

––1µs

–15ms

Unit

1. When using an external clock input, the XTI duty should be 50% with 3.3V clock signal amplitude level. The input signal voltage should not exceed the
absolute maximum rating, otherwise damage may occur.

2. The numeric values are measured values obtained using the circuit in Figure 1 and the NPC standard evaluation board.

3. The numeric values are measured values obtained using the circuit in Figure 2 and the NPC standard evaluation board.

4. This is the time, after the supply is turned ON from the OFF state, until the output clock reaches ± 0.1% of the specified frequency.

Rating

27MHz

DUT

DUT:Device under test

Active Probe

(HP1152A)

Passive Probe

(HP10435A)

Figure 1. Measurement circuit 1

Oscilloscope

(Infinium

HP54845A)

Frequency &
Time Interval

Analyzer

(HP5371A)

27MHz

DUT

DUT:Device under test

Figure 2. Measurement circuit 2

Active Probe
(HP54701A)

Oscilloscope

(HP54720D

+HP54721A)

Jitter

Measurement

System

(ASA, M1)

NIPPON PRECISION CIRCUITS INC.—13

SM8707 series

FUNCTIONAL DESCRIPTION

27MHz Master Clock

The SM8707 series 27MHz master clock circuit is configured, as shown in Figure 3 and 4, with the crystal
oscillator element connected between XTI (pin 7) and XTO (pin 8).

Alternatively, the 27MHz master clock can be supplied from an external master clock input on XTI, as shown
in Figure 5 and 6.

If an external input clock on XTI is used, it is recommended that the frequency be 27.0000MHz, with 50%
duty, and 3.3V voltage amplitude level.

Furthermore, when using an external clock input, the input signal voltage should not exceed the absolute max­imum rating, otherwise damage may occur.

C1

XTI (Pin 7)

Oscillator

XTO (Pin 8)

C2

C1, C2 = 5 to 33pF

Figure 3. Crystal oscillator connection

(excluding SM8707K)

External Clock

Open

XTI (Pin 7)

Oscillator

XTO (Pin 8)

Figure 5. External clock input

(excluding SM8707K)

Internal
Circuits

Internal
Circuits

MO

MO

C1

XTI (Pin 7)

Oscillator

XTO (Pin 8)

C2

C1, C2 = 5 to 33pF

Figure 4. Crystal oscillator connection

(SM8707K)

External Clock

Open

XTI (Pin 7)

Oscillator

XTO (Pin 8)

Figure 6. External clock input

(SM8707K)

Internal
Circuits

Internal
Circuits

NIPPON PRECISION CIRCUITS INC.—14

SM8707 series

Sampling Frequency and Output Clock Frequency

SM8707D

The SM8707D sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is HIGH, and
48kHz when FSEL is LOW. The audio output (AO1) is a 384fs frequency clock when FSEL is HIGH (fs =

44.1kHz), and 768fs frequency clock when FSEL is LOW (fs = 48kHz) where fs is determined by the setting

on FSEL. The audio output (AO2) is a 512fs frequency clock. In addition, the signal processor output (SO1 and
SO2) is a 16.9344MHz, 33.8688MHz frequency clock derived from the master clock. And the video output
(MO1 and MO2) is a 27MHz frequency clock, identical to the master clock.

The SM8707D possible output clock frequencies are shown in Table 1.

Table 1. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 44.1

LOW 48

Sampling

frequency fs

[kHz]

AO1 (Pin 9) AO2 (Pin 10) SO1 (Pin 13) SO2 (Pin 15) MO1 (Pin 3) MO2 (Pin 4)

16.9344
(384fs)

36.8640
(768fs)

22.5792
(512fs)

24.5760
(512fs)

Output clock frequency [MHz]

16.9344 33.8688 27.0000 27.0000

16.9344 33.8688 27.0000 27.0000

SM8707E

The SM8707E sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is LOW, and
48kHz when FSEL is HIGH. The audio output (AO1 and AO2) is a 512fs frequency clock, where fs is deter­mined by the setting on FSEL. In addition, the signal processor output (SO1 and SO2) is a 33.8688MHz fre­quency clock derived from the master clock. And the video output (MO1 and MO2) is a 27MHz frequency
clock, identical to the master clock.

The SM8707E possible output clock frequencies are shown in Table 2.

Table 2. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 48

Sampling

frequency fs

[kHz]

AO1 (Pin 9) AO2 (Pin 10) SO1 (Pin 13) SO2 (Pin 15) MO1 (Pin 3) MO2 (Pin 4)

24.5760
(512fs)

24.5760
(512fs)

Output clock frequency [MHz]

33.8688 33.8688 27.0000 27.0000

LOW 44.1

22.5792
(512fs)

22.5792
(512fs)

33.8688 33.8688 27.0000 27.0000

NIPPON PRECISION CIRCUITS INC.—15

SM8707 series

SM8707F

The SM8707F sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is HIGH, and
48kHz when FSEL is LOW. The audio outputs (AO1 and AO2) are equivalent to 768fs, where fs is determined
by the setting on FSEL. In addition, the signal processor outputs (SO1 and SO2) are 16.9344MHz and

33.8688MHz clocks, respectively, derived from the master clock. The video output (MO1) is a 27MHz clock,
identical to the master clock.

The SM8707F supported clock frequencies are shown in Table 3.

Table 3. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 44.1

LOW 48

Sampling

frequency fs

[kHz]

AO1 (Pin 9) AO2 (Pin 10) SO1 (Pin 13) SO2 (Pin 15) MO1 (Pin 3)

33.8688
(768fs)

36.8640
(768fs)

Output clock frequency [MHz]

33.8688
(768fs)

36.8640
(768fs)

16.9344 33.8688 27.0000

16.9344 33.8688 27.0000

SM8707G

The SM8707G signal processor outputs (SO1, SO2 and SO3) are all 33.8688MHz clocks, derived from the
master clock. The video output (MO1) is a 27MHz clock, identical to the master clock.

The SM8707G supported clock frequencies are shown in Table 4.

Table 4. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

Output clock frequency [MHz]

SO1 (Pin 9) SO2 (Pin 10) SO3 (Pin 13) MO1 (Pin 3)

33.8688 33.8688 33.8688 27.0000

SM8707H

The SM8707H sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is HIGH, and
48kHz when FSEL is LOW. The audio output (AO1) is equivalent to 512fs, where fs is determined by the set­ting on FSEL. In addition, the signal processor outputs (SO1, SO2 and SO3) are 36.8640MHz, 16.9344MHz
and 33.8688MHz clocks, respectively, derived from the master clock. The video outputs (MO1 and MO2) are
27MHz clocks, identical to the master clock.

The SM8707H supported clock frequencies are shown in Table 5.

Table 5. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 44.1

LOW 48

Sampling

frequency fs

[kHz]

AO1 (Pin 10) SO1 (Pin 9) SO2 (Pin 13) SO3 (Pin 15) MO1 (Pin 3) MO2 (Pin 4)

22.5792
(512fs)

24.5760
(512fs)

36.8640 16.9344 33.8688 27.0000 27.0000

36.8640 16.9344 33.8688 27.0000 27.0000

Output clock frequency [MHz]

NIPPON PRECISION CIRCUITS INC.—16

SM8707 series

SM8707K

The SM8707K sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is HIGH, and
48kHz when FSEL is LOW. The audio output (AO1) is equivalent to 768fs, where fs is determined by the set­ting on FSEL. In addition, the signal processor output (SO1, SO2, SO3 and SO4) is 24.5760MHz,

18.4320MHz, 36.8640MHz and 33.8688MHz clocks, respectively, derived from the master clock. Also, the
audio output AO1 36.8688MHz clock is synchronized with the signal processor output SO4 clock, and audio
output AO1 36.8640MHz clock is synchronized with the signal processor output SO3 clock.

The SM8707K supported clock frequencies are shown in Table 6.

Table 6. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 44.1

LOW 48

Sampling

frequency fs

[kHz]

AO1 (Pin 10) SO1 (Pin 4) SO2 (Pin 9) SO3 (Pin 13) SO4 (Pin 15)

33.8688
(768fs)

36.8640
(768fs)

Output clock frequency [MHz]

24.5760 18.4320 36.8640 33.8688

24.5760 18.4320 36.8640 33.8688

SM8707L

The SM8707L sampling frequency fs can be switched between 44.1kHz when FSEL (pin 14) is LOW, and
48kHz when FSEL is HIGH. The audio output (AO1 and AO2) is a 768fs frequency clock, where fs is deter­mined by the setting on FSEL. In addition, the signal processor output (SO1 and SO2) is 24.5760MHz and

33.8688MHz frequency clock derived from the master clock. And the video output (MO1 and MO2) is a
27MHz frequency clock, identical to the master clock.

The SM8707L supported clock frequencies are shown in Table 7.

Table 7. Sampling frequency and output clock frequency (27.0000MHz master clock frequency)

FSEL

(Pin 14)

HIGH 44.1

Sampling

frequency fs

[kHz]

AO1 (Pin 9) AO2 (Pin 10) SO1 (Pin 13) SO2 (Pin 15) MO1 (Pin 3) MO2 (Pin 4)

33.8688
(768fs)

33.8688
(768fs)

Output clock frequency [MHz]

24.5760 33.8688 27.0000 27.0000

LOW 48

36.8640
(768fs)

36.8640
(768fs)

24.5760 33.8688 27.0000 27.0000

NIPPON PRECISION CIRCUITS INC.—17

SM8707 series

Spike Noise Prevention Function

All device versions, excluding the SM8707G which has no FSEL input, have a spike noise prevention circuit
that prevents any spike noise generation in the audio output clocks when the sampling frequency is switched
using FSEL.

The state of the AO× output before and after FSEL is switched is shown in Figure 7.

When FSEL is switched, either from LOW to HIGH or HIGH to LOW, the spike noise prevention circuit stops
the AO× clock output by a maximum of 1µs, and then the output clock changes to reflect the current FSEL set­ting.

fs = 44.1kHz
(SM8707E: fs = 48kHz)

fs = 48kHz
(SM8707E: fs = 44.1kHz)

FSEL

AO

1µs (max)

Figure 7. Spike noise prevention circuit timing at sampling frequency switching

Sampling Frequency Switching Settling Time

The clock output response when the sampling frequency is switched using FSEL is shown in Figure 8. Note
that all device versions, excluding the SM8707G which has no FSEL input, have a spike noise prevention cir­cuit which stops the output AO× clocks for a fixed interval, which means the settling time is a maximum 1µs
when the sampling frequency is switched.

0.8V

FSEL

AO

DD

t

S

fs = 48kHz
(SM8707E: fs = 44.1kHz)

fs = 44.1kHz
(SM8707E: fs = 48kHz)

0.2V

DD

t

S

fs = 48kHz
(SM8707E: fs = 44.1kHz)

MO

SO

27.0000MHz

16.9344/33.8688MHz (SM8707D/F)

33.8688MHz (SM8707E)

16.9344/33.8688/36.8640MHz (SM8707H)

18.4320/24.5760/33.8688/36.8640MHz (SM8707K)

24.5760/33.8688MHz (SM8707L)

Figure 8. Output signal switching timing

NIPPON PRECISION CIRCUITS INC.—18

SM8707 series

SM8707 series OUTPUT FREQUENCY LISTING

Version

SM8707D

SM8707E

SM8707F

FSEL polarity

(Pin 14)

H 44.1 27.0000 27.0000

L 48.0 27.0000 27.0000

Output load capacitance [pF] 25 25 15 15 25 25

Pin name MO1 MO2 AO1 AO2 SO1 SO2

H 48.0 27.0000 27.0000

L 44.1 27.0000 27.0000

Output load capacitance [pF] 40 25 15 15 15 15

Pin name MO1 MO2 AO1 AO2 SO1 SO2

H 44.1 27.0000

L 48.0 27.0000

Output load capacitance [pF] 25 − 15 15 25 25

Sampling

frequency

fs [kHz]

Pin 3 Pin 4 Pin 9 Pin 10 Pin 13 Pin 15

Output clock frequency [MHz]

16.9344
(384fs)

36.8640
(768fs)

24.5760
(512fs)

22.5792
(512fs)

33.8688
(768fs)

−

36.8640
(768fs)

22.5792
(512fs)

24.5760
(512fs)

24.5760
(512fs)

22.5792
(512fs)

33.8688
(768fs)

36.8640
(768fs)

16.9344 33.8688

16.9344 33.8688

33.8688 33.8688

33.8688 33.8688

16.9344 33.8688

16.9344 33.8688

SM8707G

SM8707H

SM8707K

SM8707L

Pin name MO1 NC1 AO1 AO2 SO1 SO2

−−27.0000 − 33.8688 33.8688 33.8688 −

Output load capacitance [pF] 40 − 15 15 25 −

Pin name MO1 NC1 SO1 SO2 SO3 NC1

H 44.1 27.0000 27.0000 36.8640

L 48.0 27.0000 27.0000 36.8640

Output load capacitance [pF] 25 25 15 15 25 25

Pin name MO1 MO2 SO1 AO1 SO2 SO3

H 44.1

−

L 48.0 24.5760 18.4320

Output load capacitance [pF] − 25 25 25 25 25

Pin name NC1 SO1 SO2 AO1 SO3 SO4

H 44.1 27.0000 27.0000

L 48.0 27.0000 27.0000

24.5760 18.4320

33.8688
(768fs)

36.8640
(768fs)

22.5792
(512fs)

24.5760
(512fs)

33.8688
(768fs)

36.8640
(768fs)

33.8688
(768fs)

36.8640
(768fs)

16.9344 33.8688

16.9344 33.8688

36.8640 33.8688

36.8640 33.8688

24.5760 33.8688

24.5760 33.8688

Output load capacitance [pF] 15 15 15 15 15 15

Pin name MO1 MO2 AO1 AO2 SO1 SO2

NIPPON PRECISION CIRCUITS INC.—19

SM8707 series

Please pay your attention to the following points at time of using the products shown in this document.

The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on
human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such
use from NIPPON PRECISION CIRCUITS INC. (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC
free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves
the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or
warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third
parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this
document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the
Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing
or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in
compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested
appropriately take steps to obtain required permissions or approvals from appropriate government agencies.

NIPPON PRECISION CIRCUITS INC.

4-3, Fukuzumi 2-chome, Koto-ku,

Tokyo 135-8430, Japan

Telephone: [phone]

Facsimile: [phone]

http://www.npc.co.jp/

Email: sales

@npc.co.jp

NC0107CE 2003.12

NIPPON PRECISION CIRCUITS INC.—20