AD1847JP Analog Devices Inc, AD1847JP Datasheet - Page 13

• Manufacturer Part Number: AD1847JP
• Manufacturer: Analog Devices Inc

Specifications of AD1847JP

• Single Supply Voltage (typ): 5V
• Single Supply Voltage (min): 4.75V
• Single Supply Voltage (max): 5.25V
• Package Type: PLCC
• Lead Free Status / RoHS Status: Not Compliant

REV. B
Left Input Control Register (Index Address 0)
LIG3:0
res
LSS1:0
This register’s initial state after reset is: 0000 0000 (00h).
Right Input Control Register (Index Address 1)
RIG3:0
res
RSS1:0
This register’s initial state after reset is: 0000 0000 (00h).
Left Auxiliary #1 Input Control Register (Index Address 2)
LX1G4:0 Left Auxiliary Input #1 Gain Select. The least significant bit of this 32-level gain/attenuate select represents –1.5 dB.
res
LMX1
This register’s initial state after reset is: 1000 0000 (80h).
Right Auxiliary #1 Input Control Register (Index Address 3)
RX1G4:0 Right Auxiliary Input #1 Gain Select. The least significant bit of this 32-level gain/attenuate select represents –1.5 dB.
res
RMX1
This register’s initial state after reset is: 1000 0000 (80h).
IA3:0
0000
IA3:0
IA3:0
IA3:0
0001
0010
0011
Left Input Gain Select. The least significant bit of this 16-level gain select represents +1.5 dB. Maximum gain is
+22.5 dB.
Reserved for future expansion. Write zeros (LO) to all reserved bits.
Left Input Source Select. These bits select the input source for the left gain stage preceding the left ADC.
0
1
2
3
Right Input Gain Select. The least significant bit of this 16-level gain select represents +1.5 dB. Maximum gain is
+22.5 dB.
Reserved for future expansion. Write zeros (LO) to all reserved bits.
Right Input Source Select. These bits select the input source for the right gain stage preceding the right ADC.
0
1
2
3
LX1G4:0 = 0 produces a +12 dB gain. LX1G4:0 = “01000” (8 decimal) produces 0 dB gain. Maximum attenuation is
–34.5 dB. Gains referred to 2.0 V p-p full-scale output level.
Reserved for future expansion. Write zeros (LO) to all reserved bits.
Left Auxiliary #1 Mute. This bit, when set HI, will mute the left channel of the Auxiliary #1 input source. This bit is set
HI after reset.
RX1G4:0 = 0 produces a +12 dB gain. RX1G4:0 = “01000” (8 decimal) produces 0 dB gain. Maximum attenuation is
–34.5 dB. Gains referred to 2.0 V p-p full-scale output level.
Reserved for future expansion. Write zeros (LO) to all reserved bits.
Right Auxiliary #1 Mute. This bit, when set to HI, will mute the right channel of the Auxiliary #1 input source. This bit is
set to HI after reset.
Data 7
LSS1
LMX1
Data 7
Data 7
Data 7
RMX1
RSS1
Left Line 1 Source Selected
Left Auxiliary 1 Source Selected
Left Line 2 Source Selected
Left Line 1 Post-Mixed Output Loopback Source Selected
Right Line 1 Source Selected
Right Auxiliary 1 Source Selected
Right Line 2 Source Selected
Right Line 1 Post-Mixed Output Loopback Source Selected
Data 6
LSS0
Data 6
Data 6
Data 6
RSS0
res
res
Data 5
Data 5
Data 5
Data 5
res
res
res
res
Data 4
LX1G4
RX1G4
Data 4
Data 4
Data 4
res
res
–13–
Data 3
LIG3
LX1G3
RX1G3
Data 3
Data 3
Data 3
RIG3
Data 2
LIG2
LX1G2
RX1G2
Data 2
Data 2
Data 2
RIG2
Data 1
LIG1
LX1G1
RX1G1
Data 1
Data 1
Data 1
RIG1
Data 0
LIG0
LX1G0
RX1G0
Data 0
Data 0
Data 0
RIG0
AD1847