ACCUSILICON AS318-B-491520 Ultra Low Jitter Clock 49MHz

Accusilicon Crystal Oscillator AS318-B-49.152

This extremely low phase noise crystal oscillator (<90dBc @ 10Hz) is intended for professional recording equipment as well as audiophile electronics precision devices.

The AS318-B-491520 provides very low jitter - measured 0.2ps on the 10Hz-1MHz band and 0.071ps on the 12-80MHz band.

Valued for their low power consumption (<25mA @ 15pF) the Accusilicon clocks also have a high resistance to thermal stresses (operational from -20 to 85 ° C).

This component integration is nice and easy. It is powered by 3.3V (within +/- 0.3V) and give excellent results with a 0.1uF capacitor filtered power supply.

These electronic clocks now equip the Audio-GD devices and provide additional accuracy over TCXO clocks. This reference is compatible with NFB serie (does not work with NFB11).

Specifications
Type	Crystal Oscillator
Frequency	49.152MHz
Waveform	CMOS
Output Level	State "0": 10% Vdd State "1": 90% Vdd
Rise / Fall	4ns @ 20-80% Vdd
Jitter	88FS (0.2pS) @ 10Hz - 1MHz 167FS (0.071pS) @ 12kHz - 80MHz
Frequency tolerance	-20 / 20 ppm
Max Load	15pF
Duty Cycle	45-55%
Supply (VDD)	3.3V (+/- 0.3V)
Dimensions	Width: 20.83mm Length: 13.21mm Height: 5.08mm + 6.35mm (legs)

Specifications

Type

Crystal Oscillator

Frequency

49.152MHz

Waveform

CMOS

Output Level

State "0": 10% Vdd
State "1": 90% Vdd

Rise / Fall

4ns @ 20-80% Vdd

Jitter

88FS (0.2pS) @ 10Hz - 1MHz
167FS (0.071pS) @ 12kHz - 80MHz

Frequency tolerance

-20 / 20 ppm

Max Load

15pF

Duty Cycle

45-55%

Supply (VDD)

3.3V (+/- 0.3V)

Dimensions

Width: 20.83mm
Length: 13.21mm
Height: 5.08mm + 6.35mm (legs)

pinout
PIN 1	OE
PIN 7	GND
PIN 8	OUT
PIN 14	Vcc

pinout

PIN 1

PIN 7

GND

PIN 8

OUT

PIN 14

Vcc

Tamed Dylan's Harmonica!
Great Clock, especially for the money. Nice upgrade from the stock FifoPi Q7 clocks. Sound is calmer and recordings with harsh treble (sorry Bob) are much improved ;-) Benefits from lengthy break-in period.

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This review has been posted for ACCUSILICON AS318-B-491520 Ultra Low Jitter Clock 49MHz

Excellente horloge
Excellente à tous les niveaux, voir mon commentaire similaire sur l'Accusilicon à 45 Mhz. Merci au audiophonics pour les conseils toujours de qualité.

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This review has been posted for ACCUSILICON AS318-B-491520 Ultra Low Jitter Clock 49MHz

The cherries on the cake!
After having had installed Audiophonics IAN CANADA FIFOPI ULTIMATE reclocker in my Audiophonics DAP/DAC Sabre ES9018 Mk2 100Mhz by sound engineer www.lentusaudio.nl, they advised me to order the 45Mhz and 49Mhz Ultra Low Jitter clocks to replace the standard ones.
The results are extremely good! More rifined highs and lows. Blacks are black (silence is silence).
Listening has become much more relaxed with every kind of music.

(1)

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This review has been posted for ACCUSILICON AS318-B-491520 Ultra Low Jitter Clock 49MHz