CYIFS781BZXC Datasheet CYIFS781BZXC, CYIFS782BSXC, CYIFS781BSXC | P7-P9

FS781/82/84

Document #: 38-07029 Rev. *F Page 7 of 12

** Occasionally, C8 is used to

create a second pole for this loop

filter. Refer to Loop Filter Selection

table.

Mount loop filter components as

close to LF pin as possible.

Crystal is 20 MHz is 1st Order

with 18 pF load capacitance.

If Crystal load capacitance is

different than 18 pF, C1 and C2

must be re-calculated.

For third overtone crystals, a

parallel or series resonant trap

is required.

0.1 uF

27 pF

20 MHz

C8C7

FS781

(SOIC)

Xin

Xout

VSS

FSOUT

VDD

FSOUT

Figure 5. FS781 Schematic

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FS781/82/84

Document #: 38-07029 Rev. *F Page 8 of 12

Absolute Maximum Ratings

[6]

This device contains circuitry to protect the input against

damage due to high static voltages or electric fields; however,

precautions should be taken to avoid application of any

voltage higher than the absolute maximum rated voltages to

this circuit. For proper operation, V

and V

OUT

should be

constrained to the range, V

< (V

or V

OUT

) < V

. All digital

inputs are tied high or low internally. Refers to electrical speci-

fications for operating supply range.

Table 5. Absolute Maximum Ratings

Parameter Description Min. Max. Unit

Operating Voltage 3.0 6.0 VDC

VIRvss Input, relative to V

–0.3 V

+ 0.3 VDC

VORvss Output, relative to V

–0.3 V

+ 0.3 VDC

TOP Temperature, Operating 0 +70 °C

TST Temperature, Storage –65 +150 °C

Temperature, Junction – +125 °C

Table 6. DC Electrical Characteristics V

= 3.3V and 5.0V ±10%, X

= 48 MHz, T

= 0°C to 70°C

Parameter Description Min. Typ. Max. Unit

Input Low Voltage – 0.3 * V

VDC

Input High Voltage 0.7 * V

VDC

Input Low Current 100 µA

Input High Current 100 µA

Output Low Voltage I

= 10 mA, V

= 5V 0.4 VDC

Output High Voltage I

= 10 mA, V

= 5V V

– 1.0 VDC

Output Low Voltage I

= 6 mA, V

= 3.3V 0.4 VDC

Output High Voltage I

= 5 mA, V

= 3.3V 2.4 VDC

Rpd Resistor, Pull-down (Pin 7) 60K 125K 200K Ω

Rpu Resistor, Pull-up (Pin 3) 60K 125K 200K Ω

xin

Input Capacitance (Pin 1) 8 pF

xout

Output Capacitance (Pin 2) 10 pF

5V Dynamic Supply Current (CL = No Load) 38 mA

3.3V Dynamic Supply Current (CL = No Load) 20 mA

ISC Short Circuit Current (FSOUT) 25 mA

BW BW% Variations, 3.30V

[7]

–20 0 +20 %

BW BW% Variations, 5.00V

[7]

–30 0 +30 %

Table 7. Timing Electrical Characteristics V

= 3.3V and 5.0V ±10%, T

= 0°C to 70°C, C

= 15 pF, X

= 48 MHz

Parameter Description Min. Typ. Max. Unit

tTLH Output Rise Time Measured at 10%–90% @ 5 VDC 1.8 2.2 2.7 ns

tTHL Output Fall Time Measured at 10%–90% @ 5 VDC 1.5 2.0 2.5 ns

tTLH Output Rise Time Measured at 0.8V–2.0V @ 5 VDC 0.5 0.65 0.8 ns

tTHL Output Fall Time Measured at 0.8V–2.0 V @ 5 VDC 0.5 0.65 0.8 ns

tTLH Output Rise Time Measured at 10%–90% @ 3.3 VDC 2.1 2.65 3.2 ns

tTHL Output Fall Time Measured at 10%–90% @ 3.3 VDC 1.7 2.1 2.6 ns

tTLH Output Rise Time Measured at 0.8V–2.0V @ 3.3 VDC 0.7 0.95 1.2 ns

tTHL Output Fall Time Measured at 0.8V–2.0 V @ 3.3 VDC 0.6 0.85 1.1 ns

TsymF1 Output Duty Cycle 45 50 55 %

Notes:

6. Single Power Supply: The Voltage on any input or /O pin cannot exceed the power pin during power-up.

7. Percentage variations from the bandwidth % values given in

Table 2 and Table 3.

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FS781/82/84

Document #: 38-07029 Rev. *F Page 9 of 12

CCJ FSOUT, Cycle-to-Cycle Jitter, 48 MHz @ 3.30 VDC (Pin 6) – 320 370 ps

CCJ FSOUT, Cycle-to-Cycle Jitter, 48 MHz @ 5.0 VDC (Pin 6) – 310 360 ps

CCJ FSOUT, Cycle-to-Cycle Jitter, 72 MHz @ 3.30 VDC (Pin 6) – 270 325 ps

CCJ FSOUT, Cycle-to-Cycle Jitter, 72 MHz @ 5.0 VDC (Pin 6) – 390 440 ps

Table 7. Timing Electrical Characteristics V

= 3.3V and 5.0V ±10%, T

= 0°C to 70°C, C

= 15 pF, X

= 48 MHz (continued)

Parameter Description Min. Typ. Max. Unit

Table 8. Range Selection Table

(pin 3)

(pin 7)

Fin (MHz)

(pin 2/3)

Modulation

Rate

FS781

FSOUT (pin 6)

FS782

FSOUT (pin 6)

FS784

FSOUT (pin 6)

0 0 6–16 Fin/120 6–16 MHz 12–32 MHz 32–64 MHz

0 1 16–32 Fin/240 16–32 MHz 32–64 MHz 64–82 MHz

1 0 32–66 Fin/480 32–66 MHz 64–82 MHz N/A

1 1 66–82 Fin/720 66–82 MHz N/A N/A

Ordering Information

[8]

Part Number Package Type Product Flow

IMIFS781BZB 8-pin 150-mil SOIC Commercial, 0 to 70°C

IMIFS781BZBT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

IMIFS782BZB 8-pin 150-mil SOIC Commercial, 0 to 70°C

IMIFS782BZBT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

IMIFS784BZB 8-pin 150-mil SOIC Commercial, 0 to 70°C

IMIFS784BZBT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

IMIFS781BT 8-pin (4.4 mm body) TSSOP Commercial, 0 to 70°C

IMIFS781BTT 8-pin (4.4 mm body) TSSOP – Tape and Reel Commercial, 0 to 70°C

IMIFS784BT 8-pin (4.4 mm body) TSSOP Commercial, 0 to 70°C

IMIFS784BTT 8-pin (4.4 mm body) TSSOP – Tape and Reel Commercial, 0 to 70°C

Lead-free

CYIFS781BSXC 8-pin 150-mil SOIC Commercial, 0 to 70°C

CYIFS781BSXCT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

CYIFS782BSXC 8-pin 150-mil SOIC Commercial, 0 to 70°C

CYIFS782BSXCT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

CYIFS784BSXC 8-pin 150-mil SOIC Commercial, 0 to 70°C

CYIFS784BSXCT 8-pin 150-mil SOIC – Tape and Reel Commercial, 0 to 70°C

CYIFS781BZXC 8-pin (4.4 mm body) TSSOP Commercial, 0 to 70°C

CYIFS781BZXCT 8-pin (4.4 mm body) TSSOP – Tape and Reel Commercial, 0 to 70°C

CYIFS782BZXC 8-pin (4.4 mm body) TSSOP Commercial, 0 to 70°C

CYIFS782BZXCT 8-pin (4.4 mm body) TSSOP – Tape and Reel Commercial, 0 to 70°C

CYIFS784BZXC 8-pin (4.4 mm body) TSSOP Commercial, 0 to 70°C

CYIFS784BZXCT 8-pin (4.4 mm body) TSSOP – Tape and Reel Commercial, 0 to 70°C

Note:

8. The ordering part number differs from the marking on the actual device.

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P1-P3 P4-P6 P7-P9 P10-P12

CYIFS781BZXC

Mfr. #:

Buy CYIFS781BZXC

Manufacturer:

Cypress Semiconductor

Description:

Phase Locked Loops - PLL PREMIS SSCG EMI Reduction

Lifecycle:

New from this manufacturer.

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CYIFS781BZXC

CYIFS781BZXC

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