AD1848K Analog Devices, AD1848K Datasheet - Page 8

• Manufacturer Part Number: AD1848K
• Description: Parallel-Port 16-Bit SoundPort Stereo Codec
• Manufacturer: Analog Devices

AD1848K
Analog Signals
Pin Name
L_LINE
R_LINE
L_MIC
R_MIC
L_AUX1
R_AUX1
L_AUX2
R_AUX2
L_OUT
R_OUT
Miscellaneous
Pin Name
XTAL1I
XTAL1O
XTAL2I
XTAL2O
PWRDWN
INT
XCTL1:O
V
V
L_FILT
R_FILT
N/C
Power Supplies
Pin Name
V
GNDA
V
GNDD
REF
REF
CC
DD
_F
PLCC
30
27
29
28
39
42
38
43
40
41
PLCC
17
18
21
22
23
57
56 & 58
32
33
31
26
46–52, 55
PLCC
35 & 36
34 & 37
1, 7, 15, 19,
24, 45, 54
2, 8, 16, 20,
25, 44, 53, 64
TQFP
21
18
20
19
30
33
29
34
31
32
TQFP
8
9
12
13
14
44
43 & 45
23
24
22
17
37–39, 42
TQFP
26 & 27
25 & 28
6, 10, 15, 36,
41, 56
7, 11, 16, 35,
40, 51, 63
I/O
I
I
I
I
I
I
I
I
O
O
I/O
I
O
I
O
I
O
O
O
I
I
I
I/O
I
I
I
I
Description
Left Line Input. Line level input for the left channel.
Right Line Input. Line level input for the right channel.
Left Microphone Input. Microphone input for the left channel. This signal
can be either line level or –20 dB from line level.
Right Microphone Input. Microphone input for the right channel. This
signal can be either line level or –20 dB from line level.
Left Auxiliary #1 Line Input
Right Auxiliary #1 Line Input
Left Auxiliary #2 Line Input
Right Auxiliary #2 Line Input
Left Line Level Output
Right Line Level Output
Description
24.576 MHz Crystal #1 Input
24.576 MHz Crystal #1 Output
16.9344 MHz Crystal #2 Input
16.9344 MHz Crystal #2 Output
Power-Down Signal. Active LO control places AD1848K in its lowest
power consumption mode. All sections of the AD1848K, including the
digital interface, are shut down and consume minimal power.
Host Interrupt Pin. This signal is used to notify the host that the DMA
Current Count Register has underflowed.
External Control. These signals reflect the current status of register bits
inside the AD1848K. They can be used for signaling or to control external
logic.
Voltage Reference. Nominal 2.25 volt reference available for dc-coupling
and level-shifting. V
current.
Voltage Reference Filter. Voltage reference filter point for external
bypassing only.
Left Channel Filter Input. This pin requires a 1.0 F capacitor to analog
ground for proper operation.
Right Channel Filter Input. This pin requires a 1.0 F capacitor to analog
ground for proper operation.
No Connect. Do not connect.
Description
Analog Supply Voltage (+5 V)
Analog Ground
Digital Ground
Digital Supply Voltage (+5 V)
–8–
REF
should not be used where it will sink or source
REV. 0