CS5501-BS Cirrus Logic Inc, CS5501-BS Datasheet - Page 44

• Manufacturer Part Number: CS5501-BS
• Description: A/D Converter (A-D) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5501-BS

• Peak Reflow Compatible (260 C): No
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 20-SOIC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Clock Options
Several clock source options are available. These
include:
44
1) an external clock (+5 V CMOS-Compatible);
2) an on-board 4.9152 MHz crystal oscillator
3) a 4.096 MHz crystal.
with a 2
n
divider (n = 1, 2,
CLKIN
(fig. 1)
Y2
TP6
*AC Mode available only in CS5501
2
3
10
11
N = 0
Decimation Counter
CLKOUT
CLKIN
P4
CL
R
1
9
CS5501/
CS5503
CS
2
1
16
U4
Figure 2. Decimation Counter / Microport
7
SDATA
MODE
DRDY
SCLK
3
2
6
7);
4
3
5
74HC4040
18
20
19
1
5
4
TP10
3
TP8
TP9
TP7
U3
6
5
V+
2
R 11
100 k
MODE: SSC SEC AC*
7
6
4
V+
8
7
P5
13 12 14 15 1
9 10 11 12
8
2
1
R 13
100 k
DRDY
(fig. 4)
SDATA
(fig. 3, 4)
SCLK
(fig. 3)
9 10 11
4
3
Connector P1 allows jumper selection of either an
external clock or the on-board 4.9152 MHz crys-
tal oscillator (See Figure 1 for schematic) as the
clock source for the CLKIN signal on pin 3 of the
CS5501/CS5503 (shown in Figure 2).
If the EXT position is selected, a CMOS-compat-
ible clock signal (5 volt supply) should be input
to the BNC connector labeled CLKIN. If the INT
position is selected the 4.9152 MHz oscillator
output is input to counter/divider IC U2. In either
6
5
V-
V+
R 12
100 k
74HCT04
16
RN 3.5
47 k
8
3
V+
V+
R 14
100 k
U6
2
U7
0.1 F
C5
1
5
4
4
14
74HC126
5
U6
9
11
U7
3
13
7
9
U7
U7
6
14
7
10
8
1
U6
BRCLK
(fig. 1)
8
12
6
12
11
P11
U6
C15
0.1 F
D
CL
NC
74HC74
V+
2
C23
0.1 F
BC NC
U8B
V+
V+
RN 3.5
47 k
R
S
DC
10
13
P9
Q
Q
R17
100 k
9
8
CDB5501/CDB5503
10
2
4
6
8
P10
1
3
5
7
9
DCS
(fig. 3)
CS
DR
SD
SCO
SCI
DS31DB3