CS5531-ASZ Cirrus Logic Inc, CS5531-ASZ Datasheet - Page 28

• Manufacturer Part Number: CS5531-ASZ
• Description: IC ADC 16BIT 2CH W/LNA 20SSOP
• Manufacturer: Cirrus Logic Inc

Specifications of CS5531-ASZ

• Number Of Converters: 1
• Package / Case: 20-SSOP
• Number Of Bits: 16
• Sampling Rate (per Second): 3.84k
• Data Interface: Serial
• Power Dissipation (max): 45mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 4
• Architecture: Delta-Sigma
• Conversion Rate: 6.25 SPs to 3840 SPs
• Resolution: 16 bit
• Input Type: Voltage
• Interface Type: Serial (3-Wire)
• Voltage Reference: 2.5 V
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1111-5

2.4.1. Channel-Setup Register Descriptions
28
D31(MSB) D30
CSR
#1
#4
CS1
D15
CS1
CS1-CS0 (Channel Select Bits) [31:30] [15:14]
G2-G0 (Gain Bits) [29:27] [13:11]
WR3-WR0 (Word Rate) [26:23] [10:7]
00
01
10
11
000
001
010
011
100
101
110
Bit
0000
0001
0010
0011
0100
1000
1001
1010
1011
1100
All other combinations are not used.
Bits <127:112>
CS0
CS0
D14
Bits <31:16>
Setup 1
Setup 7
D29
D13
G2
G2
Select physical channel 1 (All devices)
Select physical channel 2 (All devices)
Select physical channel 3 (CS5533/34 only)
Select physical channel 4 (CS5533/34 only)
For VRS = 0, A = 2; For VRS = 1, A = 1; Bipolar input span is twice the unipolar input span.
Gain = 16, (Input Span = [(VREF+)-(VREF-)]/16*A for unipolar).
Gain = 32, (Input Span = [(VREF+)-(VREF-)]/32*A for unipolar).
Gain = 64, (Input Span = [(VREF+)-(VREF-)]/64*A for unipolar).
The listed Word Rates are for continuous conversion mode using a 4.9152 MHz clock. All word rates will
scale linearly with the clock frequency used. The very first conversion using continuous conversion mode
will last longer, as will conversions done with the single conversion mode. See the section on Performing
Conversions and Tables 1 and 2 for more details.
120 Sps
60 Sps
30 Sps
15 Sps
3840 Sps
1920 Sps
Gain = 1, (Input Span = [(VREF+)-(VREF-)]/1*A for unipolar).
Gain = 2, (Input Span = [(VREF+)-(VREF-)]/2*A for unipolar).
Gain = 4, (Input Span = [(VREF+)-(VREF-)]/4*A for unipolar).
Gain = 8, (Input Span = [(VREF+)-(VREF-)]/8*A for unipolar).
WR (FRS = 0)
7.5 Sps
960 Sps
480 Sps
240 Sps
D28
D12
G1
G1
D27
D11
G0
G0
Bits <111:96>
Bits <15:0>
WR3
WR3
Setup 2
Setup 8
D26
D10
WR (FRS = 1)
100 Sps
50 Sps
25 Sps
12.5 Sps
6.25 Sps
3200 Sps
1600 Sps
800 Sps
400 Sps
200 Sps
WR2
WR2
D25
D9
WR1
WR1
D24
D8
WR0
WR0
D23
D7
D22
U/B
U/B
D6
D21
OL1
OL1
D5
CS5531/32/33/34-AS
OL0
OL0
D20
D4
D19
DT
D3
DT
OCD
OCD
D18
D2
OG1
OG1
D17
D1
DS289F5
OG0
OG0
D16
D0