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AK4645AのメーカーはAKMです、この部品の機能は「Stereo CODEC」です。 |
部品番号 | AK4645A |
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部品説明 | Stereo CODEC | ||
メーカ | AKM | ||
ロゴ | |||
このページの下部にプレビューとAK4645Aダウンロード(pdfファイル)リンクがあります。 Total 30 pages
[AK4645A]
AK4645A
Stereo CODEC with MIC/HP-AMP
GENERAL DESCRIPTION
The AK4645A is a stereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier. The
AK4645A features analog mixing circuit that allows easy interfacing in mobile phone and portable A/V
player designs. The AK4645A is available in a 32pin QFN (4mm x 4mm), utilizing less board space than
competitive offerings.
FEATURES
1. Recording Function
• 4 Stereo Input Selector
• Stereo Mic Input (Full-differential or Single-ended)
• Stereo Line Input
• MIC Amplifier (+32dB/+26dB/+20dB or 0dB)
• Digital ALC (Automatic Level Control)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
• ADC Performance: S/(N+D): 83dB, DR, S/N: 86dB (MIC-Amp=+20dB)
S/(N+D): 88dB, DR, S/N: 95dB (MIC-Amp=0dB)
• Wind-noise Reduction Filter
• Stereo Separation Emphasis
• Programmable EQ
2. Playback Function
• Digital De-emphasis Filter (tc=50/15(s, fs=32kHz, 44.1kHz, 48kHz)
• Bass Boost
• Soft Mute
• Digital Volume (+12dB ( (115.0dB, 0.5dB Step, Mute)
• Digital ALC (Automatic Level Control)
(+36dB ∼ −54dB, 0.375dB Step, Mute)
• Stereo Separation Emphasis
• Programmable EQ
• Stereo Line Output
- Performance: S/(N+D): 88dB, S/N: 92dB
• Stereo Headphone-Amp
- S/(N+D): [email protected], S/N: 90dB
- Output Power: 70mW@16Ω (HVDD=5V), 62mW@16Ω (HVDD=3.3V)
- Pop Noise Free at Power ON/OFF
• Analog Mixing: 4 Stereo Input
3. Power Management
4. Master Clock:
External Clock Mode
• Frequencies: 256fs, 384fs, 512fs or 1024fs (MCKI pin)
5. Sampling Rate:
• EXT Master/Slave Mode:
7.35kHz ∼ 48kHz (256fs), 7.35kHz ∼ 48kHz (384fs),
7.35kHz ∼ 26kHz (512fs), 7.35kHz ∼ 13kHz (1024fs)
6. μP I/F: 3-wire serial, I2C Bus (Ver 1.0, 400kHz Fast-mode)
7. Master/Slave mode
8. Audio Interface Format: MSB First, 2’s complement
• ADC: 16bit MSB justified, I2S, DSP Mode
• DAC: 16bit MSB justified, 16bit LSB justified, 16-24bit I2S, DSP Mode
MS0986-E-00
-1-
2008/07
1 Page ■ Ordering Guide
AK4645AEZ
AKD4645A
■ Pin Layout
−30 ∼ +85°C
32pin QFN (0.4mm pitch)
Evaluation board for AK4645A
[AK4645A]
LIN4 / IN4+ 25
ROUT / LON 26
LOUT / LOP 27
MIN / LIN3 28
RIN2 / IN2− 29
LIN2 / IN2+ 30
LIN1 / IN1− 31
RIN1 / IN1+ 32
AK4645A
Top View
16 TVDD
15 DVDD
14 BICK
13 LRCK
12 SDTO
11 SDTI
10 CDTI / SDA
9 CCLK / SCL
■ Compatibility with AK4643/44
1. Function
Function
Digital I/O of μP I/F
Analog Mixing for Playback
Input Selector for Recording
HP-Amp Hi-Z Setting for wired OR
PLL
Speaker-Amp
Receiver-Amp
Package
AK4643
2.6 to 3.6V
3 Stereo
3 Stereo
No
11.2896/12/12.288/
13.5/24/27MHz
Yes
Yes
32QFN (5mm x 5mm,
0.5mm pitch)
AK4644
Å
Å
Å
Å
Å
No
Å
Å
MS0986-E-00
-3-
AK4645A
1.6 to 3.5V
4 Stereo
4 Stereo
Yes
No
Å
No
32QFN (4mm x 4mm,
0.4mm pitch)
2008/07
3Pages [AK4645A]
■ Handling of Unused Pin
The unused I/O pins must be processed appropriately as below.
Classification
Analog
Digital
Pin Name
MPWR, RIN3, HPR, HPL, MUTET, RIN4/IN4−,
LIN4/IN4+, ROUT/LOP, LOUT/LON,
MIN/LIN3, RIN2/IN2−, LIN2/IN2+, LIN1/IN1−,
RIN1/IN1+
TESTO
MCKI
Setting
These pins must be open.
This pin must be open.
This pin must be connected to HVSS.
ABSOLUTE MAXIMUM RATINGS
(AVSS=HVSS=0V; Note 3, Note 4)
Parameter
Symbol
min
Power Supplies: Analog
AVDD
−0.3
Digital
DVDD
−0.3
Digital I/O
TVDD
−0.3
Headphone-Amp
HVDD
−0.3
Input Current, Any Pin Except Supplies
IIN -
Analog Input Voltage (Note 5)
VINA
−0.3
Digital Input Voltage (Note 6)
VIND
−0.3
Ambient Temperature (powered applied)
Ta −30
Storage Temperature
Tstg −65
max
6.0
6.0
6.0
6.0
±10
AVDD+0.3
TVDD+0.3
85
150
Units
V
V
V
V
mA
V
V
°C
°C
Note 3. All voltages with respect to ground.
Note 4. AVSS and HVSS must be connected to the same analog ground plane.
Note 5. I2C, RIN4/IN4−, LIN4/IN4+, MIN/LIN3, RIN3, RIN2/IN2−, LIN2/IN2+, LIN1/IN1−, RIN1/IN1+ pins
Note 6. PDN, CSN/CAD0, CCLK/SCL, CDTI/SDA, SDTI, LRCK, BICK, MCKI pins
Pull-up resistors at SDA and SCL pins should be connected to (TVDD+0.3)V or less voltage.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(AVSS=HVSS=0V; Note 3)
Parameter
Symbol
min typ max Units
Power Supplies Analog
AVDD
2.6 3.3 3.5 V
(Note 7) Digital
DVDD
2.6 3.3 3.5 V
Digital I/O
HP-Amp
TVDD
HVDD
1.6 3.3 3.5
2.6
3.3 / 5.0
5.25
V
V
Difference
Difference
AVDD−DVDD
−0.3
0
+0.3 V
TVDD-DVDD
-
0 +0.3 V
Note 3. All voltages with respect to ground.
Note 7. The power-up sequence between AVDD, DVDD, TVDD and HVDD is not critical. PDN pin must be held to “L”
upon power-up. PDN pin must be set to “H” after all power supplies are powered-up.
The AK4645A must be operated by the recommended power-up/down sequence shown in “System Design
(Grounding and Power Supply Decoupling)” to avoid the pop noise at line output and headphone output.
When one of power supplies is partially powered OFF, the power supply current at power-down mode may be
increased. All the power supplies should be powered OFF when the power supply is powered OFF.
* AKEMD assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0986-E-00
-6-
2008/07
6 Page | |||
ページ | 合計 : 30 ページ | ||
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PDF ダウンロード | [ AK4645A データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
AK4645 | Stereo CODEC | AKM |
AK4645 | Stereo CODEC | AKM |
AK4645 | Stereo CODEC | Asahi Kasei Microsystems |
AK4645A | Stereo CODEC | AKM |