AK4125VFP-E2 AKM Semiconductor Inc, AK4125VFP-E2 Datasheet - Page 22

• Manufacturer Part Number: AK4125VFP-E2
• Description: IC SAMPLE RATE CONVERTER 30VSOP
• Manufacturer: AKM Semiconductor Inc
• Series: -r
• Type: Sample Rate Converterr

Specifications of AK4125VFP-E2

• Applications: Automotive Systems, Home Theater, TV
• Mounting Type: Surface Mount
• Package / Case: 30-LSSOP (0.220", 5.60mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 974-1042-2

2. Jitter Tolerance
Figure 17
amplitude shown in
the jitter frequency.
Tracking to the Input Sampling Frequency
When the ILRCK is generated by an external PLL, it may take time to settle after changing the input sampling frequency
because the response of an external PLL to the frequency change is slow. The AK4125 operates normally up to 23%/sec
speed but outputs incorrect data at the speed of the frequency change over 23%/sec.
MS0379-E-05
(1) Normal operation
(2) There is a possibility that the distortion degrades. (It may degrade up to about −50dB.)
(3) There is a possibility that the output data is lost.
Note:
- When PLL2-0 = “L/L/L”, “L/L/H”, “L/H/L”, the jitter amplitude is for ILRCK and 1UI (Unit Interval) is one
- When PLL2-0 = “H/*/*” (*: Don’t care), the jitter amplitude is for IBICK and 1UI (Unit Interval) is one cycle of
shows the jitter tolerance to ILRCK and IBICK. The jitter quantity is defined by the jitter frequency and the jitter
cycle of ILRCK. When FSI = 48kHz, 1UI is 1/48kHz = 20.8μs.
IBICK. When FSI = 48kHz, 1UI is 1/(64 x 48kHz) = 326ns.
10.00
1.00
0.10
0.01
0.00
Figure
1
17. When the jitter amplitude is 0.01Uipp or less, the AK4125 operates normally regardless of
(2)
10
AK4125 Jitter Tolerance
Figure 17. Jitter Tolerance
Jitter Frequency [Hz]
- 22 -
(1)
100
(3)
1000
10000
[AK4125]
2010/05