ak4372 ETC-unknow, ak4372 Datasheet
ak4372
Manufacturer Part Number
ak4372
Description
Dac With Built-in Pll & Hp-amp
Manufacturer
ETC-unknow
Datasheet
1.AK4372.pdf
(62 pages)
The AK4372 is a 24-bit DAC with an integrated PLL and headphone amplifier. The PLL input frequency is
synchronized to typical mobile phone clock frequencies. The AK4372 features an analog mixing circuit
that allows easy interfacing in mobile phone and portable communication designs. The integrated
headphone amplifier features “pop-noise free” power-on/off, a mute control, and it delivers 40mW of
power into 16Ω. The AK4372 is packaged in a 24-pin CSP (2.5mm×2.5mm) package, ideal for portable
applications.
MS0684-E-02
Multi-bit ΔΣ DAC
Sampling Rate
On chip perfect filtering 8 times FIR interpolator
Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz
System Clock
Audio I/F Format: MSB First, 2’s Complement
Digital Mixing: LR, LL, RR, (L+R)/2
Bass Boost Function
Digital ATT
Analog Mixing Circuit: 3 Inputs (Single-ended or Full-differential)
Stereo Lineout
Headphone Amplifier
μ P Interface: 3-wire/I
Power Supply: 1.6V ∼ 3.6V
Power Supply Current: 3.8mA @1.8V (6.8mW, DAC+HP, No output)
Small Package: 24pin CSP (2.5mm x 2.5mm, 0.4mm pitch)
Register Compatible with AK4368
AK4372VCB: Ta= − 40 ∼ 85°C
AK4372ECB: Ta= − 30 ∼ 85°C
- 8kHz ~ 48kHz
- Passband: 20kHz
- Passband Ripple: ±0.02dB
- Stopband Attenuation: 54dB
- PLL Mode (MCKI): 27MHz, 26MHz, 19.8MHz, 19.68MHz, 19.2MHz, 15.36MHz,
- PLL Mode (BICK or LRCK): 64fs, 32fs or fs
- EXT Mode: 256fs/384fs/512fs/768fs/1024fs
- Input Level: AC Couple Input Available
- I
- Master/Slave Mode
- S/N: 90dB@3.3V
- Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step
- Output Power: 40mW x 2ch @16Ω, 3.3V
- S/N: 92dB@3.3V
- Pop Noise Free at Power-ON/OFF and Mute
- Output Volume: 0 ~ –63dB & +12/+6/0 dB Gain
2
S, 24bit MSB justified, 24bit/20bit/16bit LSB justified
1.5dB step (0 ~ –30dB), 3dB step (–30 ~ –63dB)
GENERAL DESCRIPTION
2
C
14.4MHz, 13MHz, 12MHz and 11.2896MHz
FEATURE
DAC with built-in PLL & HP-AMP
- 1 -
AK4372
[AK4372]
2008/12
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