Low Spurious Multiclock Generator
Description
AK8138MV
Low Spurious Multiclock Generator with XO
AK8138MV
Features
27MHz Crystal Input or External Input
Four Frequency-Selectable Clock Outputs
One 27MHz-Reference Output
Selectable Clock out Frequencies: - CLK1: 24.
576MHz - CLK2: 2.
048,4.
096,8.
192,11.
2896,12.
288,
22.
5792MHz - CLK3: 6.
144,8.
192,11.
2896,12.
288,
16.
9344,22.
5792MHz - CLK4: 8.
4672,11.
2896,13.
824,
16.
9344MHz Built-in XO
Low Jitter Performance - Period Jitter:
30 psec (Typ.
) at CLK1-4 - Long Term Jitter:
60 psec (Typ.
) at CLK1-4 Low Current Consumption:
18.
0mA (Typ.
) at 3.
3V, S[3:0]=’HHHH’
Supply Voltage:
2.
85V to 3.
6V
Operating Temperature Range:
-40℃ to +85℃
Package:
16-pin SSOP (Lead free, Halogen free)
Description
The AK8138MV is a member of AKM’s low power multi clock generator family designed for a high quality audio cock with high performance C/N.
The AK8138MV generates different frequency clocks from a 27MHz crystal oscillator or external 27MHz clock input.
It provides them to up to four outputs configured by pin-setting.
Both circuitries of XO and PLL in AK8138MV are derived from AKM’s long-term-experienced clock device technology, and enable clock output to perform low jitter and to operate with very low current consumption.
The AK8138MV is available in a 16-pin SSOP package.
Applications
Personal Video Recorders Set-Top-Boxes Multi Media Receivers
Block Diagram
VDD
XIN XOUT
Crystal Oscillator
S0 S1 S2 S3
PLL1 PLL1
PLL2
Divide Logic and
Output Control
CLK1 CLK2 CLK3 CLK4 REFOUT
GND
AK8138MV Multi Clock Generator
MS1211-E-01
-1-
May-11
AK8138MV
Pin Descriptions
XOUT S0 S1 S2
VDD1 GND1 CLK1 CLK2
1 2 3 4 5 6 7 8
16 XIN
Package: 16-Pin SSOP(Top View)
15 VDD3
14 S3
13 VDD2
12 GND2
11 CLK4
10 CLK3
9 REFOUT
Pin Pin
Pin
No.
Name Type
Description
1
XOUT
OUT
Crystal connection, Connect to 27.
000MHz crystal Please open when an external clock input is used
2 S0 IN Clock Out Frequency select 0, See Table 2 for the selection
3 S1 IN Clock Out Frequency select 1, See Tab...
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