TSC2008

throughput is at least seven times faster than the effective throughput across the bus (9.26k x 7 = 64.82kSPS).

The supply current to the TSC for this rate and configuration is 240.08

µA. To achieve an equivalent sample

throughput of 8.2kSPS using the device without preprocessing, the TSC2008 consumes only (8.2/64.82) ×

240.08

µA = 30.37µA.

Table 7. Effective and Equivalent Throughput Rates

TSC

CONVERSION

EFFECTIVE

EQUIVALENT

NO.

NO.

CCLK

SUPPLY

SPI BUS

CYCLE TIME

THROUGHPUT

THROUGHPUT

OF

OF

PERIODS

VOLTAGE

RESOLUTION

(

µs)

(kSPS)

(kSPS)

SCL

CCLK

(kHz)

(ns)

8-bit

204.3

4.89

34.26

17

127

3700

270.3

100kHz

12-bit

330.0

3.03

21.21

25

148

1850

540.5

8-bit

51.3

19.48

136.39

17

127

3700

270.3

1MHz

12-bit

105.0

9.52

66.67

25

148

1850

540.5

8-bit

42.8

23.35

163.46

17

127

3700

270.3

2MHz

12-bit

92.5

10.81

75.68

25

148

1850

540.5

8-bit

41.1

24.32

170.22

17

127

3700

270.3

2.5MHz

12-bit

90.0

11.11

77.78

25

148

1850

540.5

2.7V

8-bit

38.6

25.92

181.47

17

127

3700

270.3

4MHz

12-bit

86.3

11.59

81.16

25

148

1850

540.5

8-bit

36.0

27.76

194.31

17

127

3700

270.3

10MHz

12-bit

82.5

12.12

84.85

25

148

1850

540.5

8-bit

35.4

28.26

197.81

17

127

3700

270.3

16MHz

12-bit

81.6

12.26

85.82

25

148

1850

540.5

8-bit

35.0

28.57

199.98

17

127

3700

270.3

25MHz

12-bit

81.0

12.35

86.42

25

148

1850

540.5

8-bit

205.3

4.87

34.10

17

127

3600

277.8

100kHz

12-bit

332.2

3.01

21.07

25

148

1800

555.6

8-bit

52.3

19.13

133.90

17

127

3600

277.8

1MHz

12-bit

107.2

9.33

65.28

25

148

1800

555.6

8-bit

43.8

22.84

159.90

17

127

3600

277.8

2MHz

12-bit

94.7

10.56

73.90

25

148

1800

555.6

8-bit

42.1

23.77

166.36

17

127

3600

277.8

1.8V

2.5MHz

12-bit

92.2

10.84

75.90

25

148

1800

555.6

8-bit

39.5

25.30

177.09

17

127

3600

277.8

4MHz

12-bit

88.5

11.30

79.12

25

148

1800

555.6

8-bit

37.0

27.04

189.30

17

127

3600

277.8

10MHz

12-bit

84.7

11.80

82.62

25

148

1800

555.6

8-bit

36.3

27.52

192.62

17

127

3600

277.8

16MHz

12-bit

83.8

11.94

83.55

25

148

1800

555.6

8-bit

211.0

4.74

33.18

17

127

3100

322.5

100kHz

12-bit

345.5

2.89

20.26

25

148

1550

645.2

8-bit

58.0

17.25

120.76

17

127

3100

322.5

1MHz

12-bit

120.5

8.3

58.10

25

148

1550

645.2

8-bit

49.5

20.22

141.51

17

127

3100

322.5

2MHz

12-bit

108.0

9.26

64.82

25

148

1550

645.2

1.2V

8-bit

47.8

20.93

146.54

17

127

3100

322.5

2.5MHz

12-bit

105.5

9.48

66.36

25

148

1550

645.2

8-bit

45.2

22.12

154.81

17

127

3100

322.5

4MHz

12-bit

101.7

9.83

68.81

25

148

1550

645.2

8-bit

44.4

22.54

157.77

17

127

3100

322.5

5MHz

12-bit

100.5

9.95

69.66

25

148

1550

645.2

28

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