HI2555 Datasheet, PDF (3/11 Pages) Intersil Corporation – 1-Bit, AD/DA Converter For Audio Application

HI2555, CXD2555
Pin Descriptions (Continued)
PIN NO.
17
18
19
SYMBOL
I/O
AV_DD 2
-
NC
-
SUB
-
20
NC
-
21
DV_SS
-
22
XMCK2
O
23
TEST
I
24
CLR
I
25
DV_DD
-
26
MS
I
27
LRCK
I/O
28
BCK
I/O
29
SIN
I
30
SOUT
O
31
DV_SS
-
32
MASL
I
33
MLSL
I
34
XSL0
I
35
XSL1
I
36
XSL2
I
37
DASL0
I
38
DASL1
I
39
WO
I
40
DV_DD
-
41
NC
-
42
NC
-
43
SUB
-
44
AV_DD 1
-
45
AIN1
I
46
AV_SS 1
-
47
AV_SS 3
-
48
AOUT1(+)
O
DESCRIPTION
Analog power supply for Channel-2 AD converter.
Connected to the IC internal circuit board (same electric potential as power supply). Connect
to GND on the printed circuit board via a capacitor.
Digital GND.
IC measurement. Low is output normally.
Test pin. Normally fixed to Low. Equipped with a pull-down resistor.
System clear input. Normally High; cleared when Low. Equipped with a pull-up resistor.
Digital power supply.
Master/slave mode switching input. Master mode when High; slave mode when Low.
Equipped with a pull-up resistor.
Serial I/O sampling frequency clock. Output i master mode (Pin 26 = High); input in slave mode
(Pin 26 = Low). Transfers Channel-1 data when high, and Channel-2 data when Low.
Serial bit transfer clock (64 f_S) for serial input data SIN and serial output data SOUT. Output
in master mode (Pin 26 = High); input in slave mode (Pin 26 = Low). Serial input data is re-
trieved at the rising edge; serial output data is transferred at the falling edge.
Two channels per sampling serial data input. Data format is represented by 2’s complements,
and consists of 32-bit slots.
Two channels per sampling serial data input. Data format is represented by 2’s complements,
and consists of 32-bit slots.
Digital GND.
Selects whether 16-bit serial data is place din the first 16-bit or the second 16-bit slots of the
serial I/O 32-bit slots. Forward packing when High; rearward packing when Low.
Selects whether 16-bit serial data is input/output at LSB-first or MSB-first. MSB-first when
High; LSB-first when Low.
Crystal selection. Selects the clock frequency to be input from XTLI (Pin 7) using three bits,
XSL 0 to 2.
Crystal selection. Selects the clock frequency to be input from XTLI (Pin 7) using three bits,
XSL 0 to 2.
Crystal selection. Selects the clock frequency to be input from XTLI (Pin 7) using three bits,
XSL 0 to 2.
IC measurement. Normally fixed to High.
IC measurement. Normally fixed to Low.
Synchronization window open input. Window masked when High; window open when Low
(forced synchronization). Equipped with a pull-up resistor.
Digital power supply
Connected to the IC internal circuit board (same electric potential as power supply). Connect
to GND on the printed circuit board via a capacitor.
Analog power supply for Channel-1 AD converter.
Analog input for Channel-1 AD converter.
Analog GND for Channel-1 AD converter.
Analog GND for Channel-1 DA converter.
Analog in-phase output for Channel-1 DA converter.
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