ISLA224P12

FN7983 Rev.4.01

Page 12 of 32

Apr 8, 2024

Overvoltage Recovery

tOVR

1cycles

SPI INTERFACE (Notes 11, 12)

SCLK Period

t

CLK

Write Operation

16

cycles

tCLK

Read Operation

16

cycles

CSB

 to SCLKSetup Time

tS

Read or Write

28

cycles

CSB

 after SCLK Hold Time

tH

Write

5

cycles

CSB

 after SCLK↓ Hold Time

tHR

Read

16

cycles

Data Valid to SCLK

 Setup Time

tDS

Write

6

cycles

Data Valid after SCLK

 Hold Time

tDH

Read or Write

4

cycles

Data Valid after SCLK

↓ Time

tDVR

Read

5

cycles

NOTES:

11. SPI Interface timing is directly proportional to the ADC sample period (tS). Values above reflect multiples of a 16ns sample period, and must be scaled

proportionally for lower sample rates. ADC sample clock must be running for SPI communication.

12. The SPI may operate asynchronously with respect to the ADC sample clock.

13. The relative propagation delay is the difference in propagation time between any two devices that are matched in temperature and voltage, and is

specified over the full operating temperature and voltage range.

Switching Specifications Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)

PARAMETER

SYMBOL

CONDITION

MIN

(Note 5)TYP

MAX

(Note 5)UNITS

Typical Performance Curves

All Typical Performance Characteristics apply under the following conditions unless otherwise noted: AVDD = OVDD = 1.8V, TA = +25°C, AIN = -1dBFS,

fIN = 105MHz, fSAMPLE = 125MSPS.

FIGURE 5. SNR AND SFDR vs fIN

FIGURE 6. HD2 AND HD3 vs fIN

FIGURE 7. SNR AND SFDR vs AIN

FIGURE 8. HD2 AND HD3 vs AIN

60

65

70

75

80

85

90

0

100

200

300

400

500

600

INPUT FREQUENCY (MHz)

SNR

SFDR

-105

-100

-95

-90

-85

-80

-75

-70

-65

-60

0

100

200

300

400

500

600

INPUT FREQUENCY (MHz)

HD3

HD2

10

20

30

40

50

60

70

80

90

100

110

-60

-50

-40

-30

-20

-10

0

INPUT AMPLITUDE (dBFS)

SFDR (dBc)

SNR (dBc)

SNR (dBfs)

SFDR (dBfs)

-110

-100

-90

-80

-70

-60

-50

-40

-30

-60

-50

-40

-30

-20

-10

0

HD2 (dBfs)

HD3 (dBc)

HD3 (dBfs)

INPUT AMPLITUDE (dBFS)

HD2 (dBc)