WM8148 Wolfson Microelectronics Ltd., WM8148 Datasheet - Page 13

• Manufacturer Part Number: WM8148
• Description: WM8148 : 12-BIT/12 MSPS Ccd/cis Analogue Front End/digitiser
• Manufacturer: Wolfson Microelectronics Ltd.

Figure 9 DNL Vs Output Data Codes
(MODE 1, MCLK = 32MHz, AVDD = 5V, DVDD = 3.3V)
GROUNDED-INPUT HISTOGRAMS
Figure 11 Unity Gain Histogram
(MODE 1, MCLK = 32MHz, GAIN = 1, AVDD = 5V,
DVDD = 3.3V)
WM8148
TYPICAL OVERALL SYSTEM PERFORMANCE
(INCLUDING CDS, PGA AND ADC BLOCKS)
DNL VS CODES
WOLFSON MICROELECTRONICS LTD
-0.5
-1.5
1.5
0.5
-0.5
-1.5
1.5
0.5
-1
-2
2
1
0
-1
-2
2
1
0
0
0
1
1
1
0
0
0
RMS noise = 0.26 LSB
512
0.00%
512
N-2
1024
1024
2.85%
N-1
1536
1536
Output Data Codes
Output Data Code
Output Data Code s
94.36%
N
2048
2048
2560
2560
2.79%
N+1
3072
3072
0.00%
N+2
3584
3584
4096
4096
INL VS CODES
Figure 10 INL Vs Output Data Codes
(MODE 1, MCLK = 32MHz, AVDD = 5V, DVDD = 3.3V)
Figure 12 Maximum Gain Histogram
(MODE 1, MCLK = 32MHz, GAIN = 7.4, AVDD = 5V,
DVDD = 3.3V)
-1.00
-2.00
-3.00
-4.00
-5.00
5.00
4.00
3.00
2.00
1.00
0.00
-1.00
-2.00
-3.00
-4.00
-5.00
5.00
4.00
3.00
2.00
1.00
0.00
0
0
0.40%
N-3
RMS noise = 0.95 LSB
512
512
4.58%
N-2
1024
1024
20.90%
N-1
Output Data Code
1536
1536
Output Data Codes
Output Data Codes
40.57%
N
2048
2048
26.49%
N+1
2560
2560
6.34%
PD Rev 4.0 April 1999
N+2
3072
3072
Production Data
0.63%
N+3
3584
3584
4096
4096
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