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PDF AK4636 Data sheet ( Hoja de datos )
| Número de pieza | AK4636 | |
| Descripción | 16-Bit Mono CODEC | |
| Fabricantes | AKM | |
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[AK4636]
AK4636
16-Bit Mono CODEC with ALC & MIC/SPK/Video-AMP
GENERAL DESCRIPTION
The AK4636 is a 16-bit mono CODEC with Microphone-Amplifier, Speaker-Amplifier and Video-
Amplifier. Input circuits include a Microphone-Amplifier and an ALC (Automatic Level Control) circuit.
Output circuits include a Speaker-Amplifier and Mono Line Output. Video circuits include a LPF and
Video-Amplifier. The AK4636 suits a video recording/playback system of Digital Still Cameras. The
AK4636 is housed in a space-saving 29-pin CSP 2.5mm x 3.0mm package (AK4636ECB) or a 32pin QFN
4.0mm x 4.0mm package (AK4636EN).
FEATURE
1. 16-Bit Delta-Sigma Mono CODEC
2. Recording Function
• 1ch Mono Input
• MIC Amplifier: (0dB/+3dB/+6dB/+10dB/ +17dB/+20dB/+23dB/+26dB/+29dB/+32dB)
• Digital ALC (Automatic Level Control)
- Output Noise Suppression
- Setting Rate (+36dB ∼ -54dB, 0.375dB Step, Mute)
• ADC Performance (MIC-Amp=+20dB)
- S/(N+D): 83dB
- DR, S/N: 85dB
• Wind-noise Reduction Filter
• 5 band notch Filter
• Digital Microphone Interface
3. Playback Function
• Digital ALC (Automatic Level Control)
- Output Noise Suppression
- Setting Rate (+36dB ∼ -54dB, 0.375dB Step, Mute)
• Mono Line Output:
- S/(N+D): 84dB
- S/N: 90dB
• Mono Speaker-Amp
- S/(N+D): 60dB (150mW@8Ω)
- BTL Output
- Output Power: 400mW @ 8Ω (SVDD=3.3V)
• Beep Generator
4. Video Function
• A Composite Video Input
• Gain Control (-1.0dB ∼ +10.5dB, 0.5dB Step)
• Low Pass Filter
• A Video-Amp for Composite Video Signal
• DC Direct Output
5. Power Management
6. PLL Mode:
• Frequencies:
11.2896MHz, 12MHz, 13.5MHz, 24MHz, 27MHz (MCKI pin)
1fs (FCK pin)
16fs, 32fs or 64fs (BICK pin)
7. EXT Mode:
MS1012-E-01
-1-
2010/08
1 page  
AK4636ECB
No. Pin Name
D2 VCOM
E1 VCOC
D1 AVDD
C1 VSS1
C2 VVDD
B2 VOUT
A1 VIN
C3 I2C
A2
CSN
SDA
B3 CDTIO
A3
CCLK
SCL
C4 FCK
B4 MCKI
A4 BICK
C5 SDTI
A5 SDTO
A6 PDN
B5 MCKO
B6 DVDD
C6 VSS2
D6 SPP
E6 SVDD
E5 SPN
E4 BEEP
D5 VSS3
D4 AOUT
LIN
E3 MICN
DMCLK
MIC
D3 MICP
DMDAT
E2
MPI
DMP
[AK4636]
PIN/FUNCTION
I/O Function
O
Common Voltage Output Pin = 1.15V(typ)
Bias voltage of ADC inputs and DAC outputs.
O
Output Pin for Loop Filter of PLL Circuit
This pin must be connected to VSS1 with one resistor and capacitor in series.
- Analog Power Supply Pin
- Ground Pin
- Video Amp Power Supply Pin
O Composite Video Signal Driver Pin
I Composite Video Signal Input Pin
I Control Mode Select Pin “H”: I2C Bus, “L”: 3-wire Serial
I Chip Select Pin
(I2C pin = “L”)
I/O Control Data Input/Output Pin
(I2C pin = “H”)
I/O
Control Data Input/Output Pin
(I2C pin = “L”)
This pin must be connected to the ground. (I2C pin = “H”)
I Control Data Clock Pin
(I2C pin = “L”)
I Control Data Clock Pin
(I2C pin = “H”)
I/O Frame Clock Pin
I External Master Clock Input Pin
I/O Audio Serial Data Clock Pin
I Audio Serial Data Input Pin
O Audio Serial Data Output Pin
Power-down & Reset
I When “L”, the AK4636 is in power-down mode and is held in reset.
The AK4636 must be always reset upon power-up.
O Master Clock Output Pin
- Digital Power Supply Pin
- Ground Pin.
O Speaker Amp Positive Output Pin
- Speaker Amp Power Supply Pin
O Speaker Amp Negative Output Pin
I Beep Signal Input Pin
- Ground Pin
O Mono Line Output Pin
I Line Input Pin for Single Ended Input
(MDIF bit = “0”, DMIC bit = “0”)
I
Microphone Negative Input Pin for Differential Input
(MDIF bit = “1”, DMIC bit = “0”)
I Digital Microphon Clock pin
(DMIC bit = “1”)
I Microphone Input Pin for Single Ended Input (MDIF bit = “0”,DMIC bit = “0”)
I
Microphone Positive Input Pin for Differential Input
(MDIF bit = “1” DMIC bit = “0”)
O Digital Microphone Data Input pin
(DMIC bit = “1”)
O MIC Power Supply Pin for Microphone
(DMPE bit = “0”)
O MIC Power Supply pin for Digital Microphone (DMPE bit = “1”)
MS1012-E-01
-5-
2010/08
5 Page 
[AK4636]
Parameter
min typ
Power Supplies
Power Up (PDN = “H”)
All Circuit Power-up: (Note 15)
AVDD+DVDD
fs=8kHz (LP bit = “1”)
(Note 17)
-
7
fs=48kHz(LP bit = “0”)
(Note 17)
-
11
SVDD: Speaker-Amp Normal Operation (SPPSN bit = “1”, No Output)
-4
VVDD (Note 16)
-8
Power Down (PDN = “L”) (Note 18)
AVDD+DVDD+SVDD+VVDD
-1
max Units
- mA
17 mA
12 mA
12 mA
5 μA
Note 7. The voltage difference between MICP and MICN pins. AC coupling capacitor should be inserted in series at each
input pin. Full-differential microphone input is not available at MGAIN3-0 bits = “1000” or “0000”. If the input
signal over those maximum voltages are input, the ADC does not operate properly.
Note 8. When a PLL reference clock is input to the FCK pin in PLL Slave Mode, S/ (N+D) of MICÆADC is 75dB (typ),
S/ (N+D) of DACÆAOUT is75dB (typ).
Note 9. When LOVL bit = “1”, large-amplitude output may have clip noise.
Note 10. When SPGK1-0 bits = “01” or “10”, large-amplitude output may have clip noise if the SVDD is low.
Note 11. The maximum input voltage is inversely proportional to the external input resistance (Rin). Vout = Vin ×
Rin/33kΩ(max). The volume can not be changed by BPLVL 7-0 bits in “BEEP pin External Input Resistance
Mode” (BPM1-0 bits = “10”). BPLVL 7-0 bits should be fixed “00H” to change the gain by the external
resistance (Rin).
Note 12. Input Voltage does not depend on VVDD voltage.
Note 13. Measurement point is A of Figure 2.
Note 14. This is the value when the lowest input signal level is more than -20IRE.
Note 15. When PLL Master Mode (MCKI=12MHz), and PMV = PMMP = PMADC = PMDAC = PMPFIL = PMSPK =
PMVCM = PMPLL = MCKO = PMAO = M/S = “1”. The MPI pin outputs 0mA. In EXT mode, when PMPLL=
MCKO= M/S= “0” and LP= “0”, AVDD+ DVDD= 6mA (fs=8kHz, typ) or 9mA (fs=48kHz, typ), when LP=
“1”, AVDD+DVDD = 5mA (fs=8kHz, typ).
Note 16. When Black signal is input to the VIN pin, and the VOUT pin has no load resistance. If the resistance is 150Ω,
it is 12.5mA(typ).
Note 17. Set LP bit = “1” when sampling frequency ≤ 22.05kHz, set LP bit = “0” when > 22.05kHz.
Note 18. All digital input pins are fixed to DVDD or VSS2.
Measuring point A
VIN
CLAMP
LPF
GCA
7 5Ω
-1dB ~ +10.5dB
Step 0.5dB
+6dB VOUT
75 Ω
Figure 2. Measurement Point
MS1012-E-01
- 11 -
2010/08
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK4636.PDF ] | |
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