Document
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
AK4126
6ch 192kHz / 24-Bit Asynchronous SRC
GENERAL DESCRIPTION AK4126 is a 6ch digital sample rate converter (SRC). The input sample rate ranges from 8kHz to 192kHz. The output sample rate is from 8kHz to 192kHz. By using the AK4126, the system can take very simple configuration because the AK4126 has an internal PLL and does not need any master clock Then the AK4126 is suitable for the application interfacing to different sample rates like multi-channel high-end Car Audio, DVD recorder, etc. FEATURES 1. SRC • 6 channels input/output • Asynchronous Sample Rate Converter • Input Sample Rate Range (fsi): 8kHz ∼ 192kHz • Output Sample Rate Range (fso): 8kHz ∼ 192kHz • Input to Output Sample Rate Ratio: 1/6 to 6 • THD+N: −130dB • Dynamic Range: 140dB (A-weighted) • I/F format: MSB justified, LSB justified and I2S compatible • PLL for Internal Operation Clock • Digital De-emphasis Filter (32kHz, 44.1kHz and 48kHz) • Soft Mute Function 2. Power Supply • AVDD, DVDD: 3.0 ∼ 3.6V (typ. 3.3V) 3. Ta = −40 ∼ 85°C 4. Package: 64LQFP
MS0544-E-00 -1-
2006/09
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
IDIF2 IDIF1 IDIF0 DEM1DEM0
DVDD DVSS ODIF1 ODIF0 OBIT1 OBIT0
IBICK ILRCK SDTI1 SDTI2 SDTI3 AVDD AVSS PLL2 PLL1 PLL0
Serial Audio I/F
DEM
SRC
Serial Audio I/F
OLRCK OBICK SDTO1 SDTO2 SDTO3 PDN SMUTE DITHER
PLL
PM SMT1 SMT0
UNLOCK
Figure 1. AK4126 Block Diagram
Compatibility with AK4125
Parameter Channel Maximum Sampling Frequency Maximum BICK Frequency Bypass Mode Master Mode De-emphasis Variable Soft Mute Cycle Group Delay Package
AK4126 6ch 192kHz 64fs No No Yes Yes typ. 57/fs 64LQFP(12mm x 12mm)
AK4125 2ch 216kHz 128fs Yes Yes No No typ. 56/fs 30VSOP (9.7mm x 7.6mm)
MS0544-E-00 -2-
2006/09
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
Application Block Circuit Example 1. Most Î Amp Unit MOST
IBCLK BICK ILRCK LRCK SDTI1-3 SRC SDTO1-3 3 SDTI OLRCK LRCK
AK4126
OBCLK
ASIC
BCLK
3 SDTO
fs = 192kHz fs = 96kHz fs = 88.2kHz fs = 48kHz fs = 44.1kHz SRC fs = 176.4kHz fs = 96kHz fs = 88.2kHz fs = 48kHz fs = 44.1kHz
2. DVD (5.1ch) Î MOST or ASIC ASIC (Endec)
IBCLK BICK ILRCK LRCK
AK4126
OBCLK
MOST or ASIC
BCLK
OLRCK SRC LRCK SDTO1-3
3 SDTO
SDTI1-3
3 SDTI
fs = 192kHz fs = 96kHz fs = 48kHz SRC
fs = 96kHz fs = 88.2kHz fs = 48kHz fs = 44.1kHz
MS0544-E-00 -3-
2006/09
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
Ordering Guide
AK4126VQ AKD4126 −40 ∼ +85°C 64LQFP (0.5mm pitch) Evaluation Board for AK4126
Pin Layout
TST10 TST11 DVSS DVDD AVDD AVSS TST9 TST7 50
TST8
PLL0
PLL1
FILT
PLL2
NC
NC
63
62
64
61
60
59
58
57
56
55
54
53
52
51
49
NC
NC TEST0 ILRCK IBICK DVDD DVSS TST0 SDTI1 SDTI2 SDTI3 IDIF0 IDIF1 IDIF2 TST1 TST2 NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 20 21 22 23 25 28 17 18 19 26 24 27 29 30 31 32
48 47 46 45 44 43 42
NC TEST4 OLRCK OBICK DVDD DVSS TST6 SDTO1 SDTO2 SDTO3 ODIF0 ODIF1 TEST3 TEST2 TEST1 NC
Top View
41 40 39 38 37 36 35 34 33
TST3
TST4
SMT0
SMT1
DEM0
UNLOCK
SMUTE
DITHER
MS0544-E-00 -4-
OBIT0
OBIT1
DVSS
DVDD
DEM1
TST5
PDN
PM
2006/09
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
PIN / FUNCTION
No. 1, 16, 33,48, 49,59, 64 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 22 23 Pin Name I/O Function No Connect Pin. No internal bonding. This pin must be connected to DVSS. TEST Pin This pin must be connected to DVSS. Input Channel Clock Pin Audio Serial Data Clock Pin Digital Power Supply Pin, 3.0 ∼ 3.6V Digital Ground Pin TEST Pin This pin must be connected to DVSS. Audio Serial Data Input #1 Pin Audio Serial Data Input #2 Pin Audio Serial Data Input #3 Pin Audio Interface Format #0 Pin for Input PORT Audio Interface Format #1 Pin for Input PORT Audio Interface Format #2 Pin for Input PORT TEST Pin This pin must be connected to DVSS. TEST Pin This pin must be connected to DVSS. TEST Pin This pin must be connected to DVSS. TEST Pin This pin must be connected to DVSS. Unlock Status Pin Digital Power Supply Pin, 3.0 ∼ 3.6V Digital Ground Pin Soft Mute Pin “H” : Soft Mute, “L” : Normal Operation Dither Enable Pin “H” : Dither ON, “L” : Dither OFF Power-Down Mode Pin “H”: Power up, “L”: Power down reset and initializes the control register. The AK4126 should be reset once by bringing PDN pin = “L” upon power-up. Soft Mute Timer Select #0 Pin Soft Mute Timer Select #1 Pin De-emphasis Control #0 Pin De-emphasis Control #1 Pin 4ch/6ch Mode Select Pin Bit Length Select #0 Pin for Output Data Bit Length Select #1 Pin for Output Data
NC
-
TEST0 ILRCK IBICK DVDD DVSS TST0 SDTI1 SDTI2 SDTI3 IDIF0 IDIF1 IDIF2 TST1 TST2 TST3 TST4 UNLOCK DVDD DVSS SMUTE DITHER
I I I I I I I I I I I I I I O I I
24 25 26 27 28 29 30 31
PDN SMT0 SMT1 DEM0 DEM1 PM OBIT0 OBIT1
I I I I I I I I
Note: All input pins should not be left floating.
MS0544-E-00 -5-
2006/09
ASAHI KASEI
www.DataSheet4U.com
[AK4126]
PIN / FUNCTION
No. 32 34 35 36 37 38 39 40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57 58 60 61 62 63 Pin Name TST5 .