TDA8779H Datasheet, PDF (14/20 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
handbook, full pagewidth
CLKD
MULTIPLEXED
INPUTS
I CHANNEL
LATCHED DATA
I CHANNEL
DAC OUTPUT
Q CHANNEL
DAC OUTPUT
th
tCH
n
ts
In
Qn
In _{+ 1}
Qn _{+ 1}
In
In _{+ 1}
tCL
In _{+ 2}
Qn _{+ 2}
In _{+ 2}
HIGH
1.4 V
LOW
In _{+ 3}
HIGH
LOW
In _{+ 3}
In _{− 1}
In
In _{+ 1}
In _{+ 2}
Qn _{− 1}
Qn
Qn _{+ 1}
Fig.5 DACs multiplexed inputs timing diagram.
Qn _{+ 2}
MGG079
handbook, halfpage_TDA8779
9,11 I, Q ^{1 µF}
300 Ω
15 pF
MGG076
1999 Sep 16
Fig.6 Equivalent DACs output load.
14