AD1845JST Analog Devices Inc, AD1845JST Datasheet - Page 17
AD1845JST
Manufacturer Part Number
AD1845JST
Description
IC CODEC AUDIO 5V 16BIT 100TQFP
Manufacturer
Analog Devices Inc
Type
Stereo Audior
Datasheet
1.AD1845JP.pdf
(40 pages)
Specifications of AD1845JST
Rohs Status
RoHS non-compliant
Resolution (bits)
16 b
Number Of Adcs / Dacs
2 / 2
Sigma Delta
Yes
Dynamic Range, Adcs / Dacs (db) Typ
81 / 82
Voltage - Supply, Analog
4.75 V ~ 5.25 V
Voltage - Supply, Digital
4.75 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-TQFP, 100-VQFP
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Part Number
Manufacturer
Quantity
Price
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AD1845JST
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
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Manufacturer:
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This register’s initial state after reset is “000x 0000.”
LX1A4:0
res
LMX1
This register’s initial state after reset is “1xx0 1000.”
RX1A4:0
res
RMX1
This register’s initial state after reset is “1xx0 1000.”
LX2A4:0
res
LMX2
This register’s initial state after reset is “1xx0 1000.”
REV. C
Left Auxiliary #1 Input Control (IXA3:0 = 2)
Right Auxiliary #1 Input Control (IXA3:0 = 3)
Right Auxiliary #2 Input Control (IXA3:0 = 5)
Left Auxiliary #2 Input Control (IXA3:0 = 4)
IXA3:0
IXA3:0
IXA3:0
IXA3:0
2
3
5
4
Left Auxiliary Input #1 Attenuate Select. The least significant bit of this gain/attenuate select represents 1.5 dB.
Left Auxiliary #1 Mute. This bit, when set, will mute the left channel of the Auxiliary #1 input source. This bit
Right Auxiliary Input #1 Attenuate Select. The least significant bit of this gain/attenuate select represents
Left Auxiliary Input #2 Attenuate Select. The least significant bit of this gain/attenuate select represents 1.5 dB.
Left Auxiliary #2 Mute. This bit, when set to 1, will mute the left channel of the Auxiliary #2 input source. This
RSS1
0
0
1
1
LX1A4:0 = 0 produces a +12 dB gain. LX1A4:0 = “01000” (8 decimal) produces 0 dB gain. Maximum attenua-
tion is –34.5 dB. See Figure 10.
Reserved for future expansion. Always write zeros to these bits.
powers up set.
1.5 dB. RX1A4:0 = 0 produces a +12 dB gain. RX1A4:0 = “01000” (8 decimal) produces 0 dB gain. Maximum
attenuation is –34.5 dB. See Figure 10.
Reserved for future expansion. Always write zeros to these bits.
Right Auxiliary #1 Mute. This bit, when set, will mute the right channel of the Auxiliary #1 input source. This
bit powers up set.
LX2A4:0 = 0 produces a +12 dB gain. LX2A4:0 = “01000” (8 decimal) produces 0 dB gain. Maximum attenua-
tion is –34.5 dB. See Figure 10.
Reserved for future expansion. Always write zeros to these bits.
bit powers up set.
Data 7
Data 7
Data 7
LMX1
RMX1
Data 7
RMX2
LMX2
RSS0
0
1
0
1
Right Input Source
Right Line Source Selected
Right Auxiliary 1 Source Selected
Right Microphone Source Selected
Right Post-Mixed DAC Output Source Selected
Data 6
Data 6
Data 6
Data 6
res
res
res
res
Data 5
Data 5
Data 5
Data 5
res
res
res
res
–17–
LX1A4
RX1A4
Data 4
Data 4
Data 4
LX2A4
Data 4
RX2A4
Data 3
LX1A3
Data 3
RX1A3
Data 3
LX2A3
Data 3
RX2A3
Data 2
LX1A2
Data 2
RX1A2
Data 2
LX2A2
Data 2
RX2A2
Data 1
LX1A1
Data 1
RX1A1
Data 1
LX2A1
RX2A1
Data 1
LX1A0
RX1A0
Data 0
Data 0
LX2A0
RX2A0
AD1845
Data 0
Data 0