TDA9901 datasheet(8/18 Pages) NXP

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TDA9901_4

Product data sheet

Rev. 04 — 14 August 2008

8 of 18

NXP Semiconductors

TDA9901

Wideband differential digital controlled variable gain ampliﬁer

third harmonic level

Vo = Vo(max); Tamb =25 °C

fi = 0.5 MHz

−64

−60

dBc

fi = 4.43 MHz

−64

−59

dBc

fi = 12.5 MHz

−62

−58

dBc

fi = 21.4 MHz

−61

−57

dBc

∆α3H/∆T

third harmonic level

variation with

temperature

fi = 21.4 MHz

mdB/

°C

Reference voltage output ADC: pin CMADC

Vref

reference voltage

referenced to VDDA;

Tamb =25 °C

VDDA − 1.64 VDDA − 1.45 VDDA − 1.26 V

output resistance

Tamb =25 °C

Ω

∆Vo(ref)/∆T

reference output voltage

variation with

temperature

−0.11

mV/

°C

Io(max)

maximum output current

1.0

output capacitance

Reference voltage output VGA: pin CMVGA

Vref

reference voltage

referenced to VDDA;

Tamb =25 °C

VDDA − 2.48 VDDA − 2.30 VDDA − 2.17 V

output resistance

Tamb =25 °C-

Ω

∆Vo(ref)/∆T

reference output voltage

variation with

temperature

1.75

mV/

°C

Io(max)

maximum output current

1.0

output capacitance

Gain switching characteristics (in latched mode); fclk = 52 MHz; Tamb = 25 °C; see Figure 3

hold time

2.0

tsu

set-up time

3.8

pulse width

5.8

tPD

propagation delay

4.2

5.9

settling time

10 % to 90 % full scale if

±6 dB gain change

[3] -

2.6

3.2

Gain switching characteristics (in transparent mode); fclk = 52 MHz; Tamb = 25 °C; see Figure 4

tPD

propagation delay

6.7

9.5

settling time

10 % to 90 % full scale if

±6 dB gain change

[4] -

5.4

6.9

Clock timing input: pins CLK and CLKN (see Figure 3)

fclk(max)

maximum clock

frequency

MHz

tw(clk)L

LOW clock pulse width

4.0

tw(clk)H

HIGH clock pulse width

4.0

Table 6.

Characteristics …continued

VDDA = V11 to V12 = 4.75 V to 5.25 V; VDDD = V18 to V17 = 3.0 V to 5.25 V; VSSA and VSSD shorted together;

Tamb = −40 °C to +85 °C; typical values measured at VCCA = 5.0 V; VCCD = 3.3 V and Tamb =25 °C unless otherwise speciﬁed

[1].

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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