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ABMX0122XC-T Datasheet

  • ABMX0122XC-T

  • 27MHz Multiple output XO with Audio Clock

  • 4頁(yè)

  • ABRACON   ABRACON

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Preliminary
ABMX0122
27MHz Multiple output XO with Audio Clock
FEATURES
鈥?/div>
鈥?/div>
2 XO outputs at 27MHz (27MHz crystal input).
Selectable Audio Clocks supporting:
32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz
sampling rates
256, 384 and 512 oversampling ratios
8.192, 11.2896, 12.288, 16.9344, 16.384,
18.432, 22.5792, 24.576MHz audio frequencies
On-the-fly switching of the audio frequency
Power down tri-state selector.
3.3V Operating Voltage.
Available in 16-Pin SSOP
PACKAGE PIN CONFIGURATION
XIN
XOUT
VDD
VDD
NC
GND
GND
PDOWN^
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S1^
27MHz
VDD
S0^
27MHz
GND
ACLK
S2^
ABMX0122
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
XIN = 27 MHz
Note:
^: Internal pull-up resistor. The internal pull-up resistor
results in a default high value when no pull-down resistor is
connected to this pin.
AUDIO CLOCK SELECTION
DESCRIPTION
The ABMX0122 is a low cost integrated XO IC with
power down feature, designed to work with a
fundamental 27MHz crystal to provide the most
common audio clocks (8.192, 11.2896, 12.288,
16.9344, 16.384, 18.432, 22.5792, and 24.576MHz)
required by sampling rates of 32kHz, 44.1kHz, 48kHz,
64kHz and 96kHz (256, 384 and 512 oversampling
ratios). The wide range of audio frequencies makes it
ideal for STB and MPEG Video applications.
S2
0
0
0
0
1
1
1
1
S1
0
0
1
1
0
0
1
1
S0
0
1
0
1
0
1
0
1
ACLK (MHz)
8.192
11.2896
12.288
16.9344
18.432
16.384
22.5792
24.576
BLOCK DIAGRAM
[S2-S0]
Audio
PLL
ACLK
PDOWN
27MHz
Xin
XO
Xout
27MHz
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001
www.Abracon.com
03/21/05 Page 1

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