參數(shù)資料
型號： AK5702VN
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： 4-Channel ADC with PLL & MIC-AMP
中文描述： 4通道ADC，帶鎖相環(huán)
文件頁數(shù)： 39/76頁
文件大?。?/td> 933K
代理商： AK5702VN
[AK5702]
MS0623-E-00
2007/06
- 39 -
IN1
pin
IN1+ pin
MPWRA pin
AK5702
MIC-Amp
1k
1k
Figure 40. Connection Example for Full-differential Mic Input (MDIFA1/2 bits = “1”)
MGAINA1-0 bits
00
00
Don’t care
00
01,10,11
01,10,11
Don’t care
01,10,11
MGAINB1-0 bits
00
Don’t care
00
01,10,11
00
Don’t care
01,10,11
01,10,11
ADCA Input
LIN5/RIN5
LIN5/RIN5
LIN1-2/RIN1-2
LIN5/RIN5
LIN5/RIN5
LIN5/RIN5
LIN1-2/RIN1-2
LIN5/RIN5
Table 24. Input Resistance of LIN5, RIN5
ADCB Input
LIN5/RIN5
LIN3-4/RIN3-4
LIN5/RIN5
LIN5/RIN5
LIN5/RIN5
LIN3-4/RIN3-4
LIN5/RIN5
LIN5/RIN5
Input Resistance (typ)
30k
20k
15k
■
MIC Gain Amplifier
The AK5702 has a gain amplifier for microphone input. The gain of MIC-Amp is selected by the MGAINA1-0,
MGAINB1-0 bits (Table 25). The typical input impedance of LIN1-4 and RIN1-4 is 60k
Ω
(typ)@MGAINA1-0,
MGAINB1-0 bits = “00” or 30k
Ω
(typ)@MGAIN1-0 bits = “01”, “10” or “11”. Refer to Table 24 about the typical input
resistance of LIN5, RIN5.
MGAINA/B1 bit
MGAINA/B0 bit
0
0
0
1
1
0
1
1
Table 25. Mic Input Gain
■
MIC Power
When PMMPA, PMMPB bits = “1”, the MPWRA, MPWRB pins supplies power for the microphone. This output voltage
is typically 0.75 x AVDD and the load resistance is minimum 0.5k
Ω
. In case of using two sets of stereo mic, the load
resistance is minimum 2k
Ω
for each channel. No capacitor must not be connected directly to MPWRA, MPWRB pins (
Figure 41, Figure 42).
PMMPA/B bit
MPWRA/B pin
0
1
Table 26. MIC Power
Input Gain
0dB
+15dB
+30dB
+36dB
(default)
(default)
Hi-Z
Output
相關(guān)PDF資料
PDF描述
AK6002A Circular Connector; No. of Contacts:8; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-8 RoHS Compliant: No
AK6002AF Circular Connector; No. of Contacts:23; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:16-99 RoHS Compliant: No
AK6002AV The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
AK6004A Circular Connector; No. of Contacts:26; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:16; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:16-26 RoHS Compliant: No
AK6004AF The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
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