TDA8779H Datasheet, PDF (7/20 Pages) NXP Semiconductors – 10-bit converter interface ADC/DAC for quadrature transceiver

Philips Semiconductors
10-bit converter interface (ADC/DAC) for
quadrature transceiver
Product specification
TDA8779H
SYMBOL
PARAMETER
∆V_CC
I_CCA
I_CCD
I_CCO
voltage difference between
V_CCA − V_CCD
V_CCA − V_CCO
V_CCD − V_CCO
analog supply current
digital supply current
output stage supply current
I_CCA1(stb)
I_CCA2(stb)
analog standby current for
the ADC part
analog standby current for
the DAC part
CONDITIONS
T_amb = 25 °C
ramp input;
f_CLK = 20 MHz
MIN.
TYP.
−0.2
−
0
−
0
−
59
74
15
23
−
7
−
0.7
−
2.5
ADC part
CLOCK INPUT
V_IL
LOW-level input voltage
V_IH
HIGH-level input voltage
I_IL
LOW-level input current
I_IH
HIGH-level input current
DIGITAL INPUTS: PINS OE AND STDBYA
V_IL
LOW-level input voltage
V_IH
HIGH-level input voltage
I_IL
LOW-level input current
I_IH
HIGH-level input current
ANALOG INPUTS
I_IL
I_IH
V_i(p-p)
LOW-level input current
HIGH-level input current
analog input voltage
(peak-to-peak value)
V_i(p-p)over
maximum analog input
overvoltage
(peak-to-peak value)
Z_I
input impedance
C_I
input capacitance
DIGITAL OUTPUTS: D0A TO D9A
V_OL
LOW-level output voltage
V_OH
HIGH-level output voltage
I_oZ
output current in 3-state
mode
T_amb = 25 °C
T_amb = 25 °C
0
−
2.0
−
−10
−
−10
−
T_amb = 25 °C
T_amb = 25 °C
0
−
2.0
−
−10
−
−10
−
for code 0
for code 1023
full-scale
overvoltage for
f_i = 4.43 MHz;
T_amb = 25 °C
−
−91
−
80
1.52
1.57
−
−
−
10
−
3
I_o = 1 mA
0
−
I_o = −1 mA
V_CCO − 0.5 −
0.5 V < V_o < V_CCO − 0.5 V −20
−
SWITCHING CHARACTERISTICS; T_amb = 25 °C (see Fig.3)
f_CLK(max) maximum clock frequency
t_CH
clock pulse width HIGH
20
−
20
−
1999 Sep 16
7
MAX. UNIT
+0.2
V
2.8
V
2.8
V
85
mA
35
mA
15
mA
3
mA
5
mA
0.8
V
V_CCD1
V
+10
µA
+10
µA
0.8
V
V_CCD1
V
+10
µA
+10
µA
−
µA
−
µA
1.62
V
3.0
V
−
kΩ
−
pF
0.5
V
V_CCO
V
+20
µA
−
MHz
−
ns