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AK4340_06 Datasheet, PDF (1/23 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output | |||
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ASAHI KASEI
[AK4340]
AK4340
192kHz 24-Bit Stereo âΣ DAC with 2Vrms Output
GENERAL DESCRIPTION
The AK4340 offers the ideal features for consumer systems that require a 2Vrms audio output. Using
AKM's multi bit architecture for its modulator the AK4340 delivers a wide dynamic range while preserving
linearity for improved THD+N performance. The AK4340 integrates the Switched Capacitor Filter (SCF)
increasing performance for systems with excessive clock jitter. The 24 Bit word length and 192kHz
sampling rate make this part ideal for a wide range of applications including Set-top-box, DVD-Audio. The
AK4340 is offered in a space saving 16pin TSSOP package.
FEATURES
 Sampling Rate Ranging from 8kHz to 192kHz
 128 times Oversampling (Normal Speed Mode)
 64 times Oversampling (Double Speed Mode)
 32 times Oversampling (Quad Speed Mode)
 24-Bit 8 times FIR Digital Filter
 Switched Capacitor Filter with High Tolerance to Clock Jitter
 On chip Buffer with 2Vrms Single-ended output
 Digital De-emphasis Filter: 32kHz, 44.1kHz or 48kHz
 Soft Mute Function
 Digital Attenuator (Linear 256 Step)
 Audio interface format: 24Bit MSB justified, 24/20/16 LSB justified or
I2S compatible
 Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)
128fs, 192fs, 256fs or 512fs (Double Speed Mode)
128fs or 192fs (Quad Speed Mode)
 THD+N: -90dB
 Dynamic Range: 106dB
 Power supply: +4.5V to +5.5V (DAC), - 4.5V to - 13.2V (Output Buffer)
 Ta = - 20 to 85 °C
 Package: 16pin TSSOP (6.4mm x 5.0mm)
P/S
MCLK
GAIN
SMUTE/CSN
ACKS/CCLK
DIF0/CDTI
LRCK
BICK
SDTI
µP
Interface
De-emphasis
Control
Clock
Divider
Audio
ATT
8X
Interpolator
âΣ
Modulator
SCF
LPF
Data
Interface
ATT
8X
Interpolator
âΣ
Modulator
SCF
LPF
VDD
VSS
HVEE
AOUTL
AOUTR
MS0501-E-00
PDN
-1-
2006/04
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