TSA1204_06 datasheet(6/31 Pages) STMICROELECTRONICS

6 / 31 page

Dynamic characteristics

TSA1204

6/31

Dynamic characteristics

Dynamic characteristics are measured at AVCC = DVCC = VCCB = 2.5 V, FS= 20 Msps,

Fin=10.5 MHz, Vin@ -1 dBFS, VREFP=1.0 V, VREFM=0 V and Tamb = 25° C (unless otherwise

specified).

Timing characteristics

Timing characteristics are measured at AVCC = DVCC = VCCB = 2.5 V, FS= 20 Msps,

Fin=10.5 MHz, Vin@ -1 dBFS, VREFP=1.0 V, VREFM=0 V and Tamb = 25° C (unless otherwise

specified).

Table 2.

Dynamic characteristics

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

SFDR

Spurious free dynamic range

-81.5

-71.0

dBc

SNR

Signal to noise ratio

66.9

68.5

THD

Total harmonics distortion

-80

-70

dBc

SINAD

Signal to noise and distortion ratio

64.8

ENOB

Effective number of bits

10.6

11.2

bits

Table 3.

Timing characteristics

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

Sampling frequency

0.5

MHz

Clock duty cycle

TC1

Clock pulse width (high)

22.5

TC2

Clock pulse width (low)

22.5

Tod

Data output delay (clock edge to data

valid)

10 pF load

capacitance

9ns

Tpd I

Data pipeline delay for channel I

cycle

Tpd Q

Data pipeline delay for channel Q

7.5

cycle

Ton

Falling edge of OEB to digital output

valid data

1ns

Toff

Rising edge of OEB to digital output

tri-state

1ns

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