ST70136

18/24

TA = 0 to 70°C unless otherwise specified.

Table 12 : DAC 8B Specifications

Notes: a. Measured at VCOCAP output, filter disabled.

b. Filter disabled, current through IVCO = 10

µA, VCXOUT = 2V.

c. Filter enabled.

d. Filter disabled.

5.6 - Crystal

Note: Recommended Crystal: MELCOM 35.328MHz / UM1/ 30 / 30 / 0+70 / 15pF / FUND.

Typical specifications apply for VCC = 5.0V, temperature = 27°C, nominal process and bias current. Maximum and

Description

Minimum

Typical

Maximum

Unit

Comments

Number of bit

8

Sampling rate

1

KHz

DNL

a

-0.5

0.5

LSB

INL

a

-2

2

LSB

max code (FFh)

a

2.42

2.52

2.62

V

mid code (80h)

a

3.57

3.63

3.69

V

min code (00h)

a

4.74

4.77

4.80

V

-10

10

mV

Offset variation with current

-20

20

mV

Iout variation from 10

µA to 400µA,

@ code max, VCXOUT = 2.4V

VCOCAP Zout

c

320

500

680

k

Ω

VCOCAP Zout

d

350

500

650

Ω

VCOCAP load

10

µF

Table 13 : Crystal Parameters

Parameter

Symbol

Minimum

Typical

Maximum

Unit

Start up time

7ms

Clock Frequency

CLKM

35.328

MHz

Frequency adjustment range

-100

100

ppm