TDA8041H Datasheet, PDF (8/16 Pages) NXP Semiconductors – Quadrature demodulator controller

Philips Semiconductors
Quadrature demodulator controller
Preliminary specification
TDA8041H
CHARACTERISTICS
V_DD = 4.75 to 5.25 V; R_sym = 30 × 10⁶ symbols/s; T_amb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX.
UNIT
Digital outputs (pins 26 to 28 and 31 to 33)
V_OL
LOW level output voltage
V_OH
HIGH level output voltage see Fig.6
t_d
delay time
see Fig.6
t_h
hold time
Digital inputs
V_IL
LOW level input voltage
V_IH
HIGH level input voltage
C_I
input capacitance
Clock output (pins 22 and 25); see Fig.5
V_OL
LOW level output voltage
V_OH
HIGH level output voltage
T_cy
cycle time
t_W
pulse width
duty cycle 40/60
t_r
rise time
C_L = 30 pF
t_f
fall time
C_L = 30 pF
Clock input (pin 23)
R_source
f_s
source resistance
sampling frequency
Analog inputs (pins 18 and 19)
R_sym
V_ref(pos)
V_ref(mid)
V_ref(neg)
I_L
V_i(I,Q)
V_I,Q(op)
R_I
C_I
I_bias
symbol rate
positive reference voltage I_O = 0
middle reference voltage I_O = 0
negative reference voltage I_O = 0
load current at pin 8
note 1
I and Q input voltage
I and Q operating voltage
input resistance
input capacitance
input bias current
R_L = 100 kΩ
DAC outputs (pins 10, 12, 15 and 21)
I_o(av)
D_Io
average output current
matching of positive and
negative output currents
V_DAC = V_ref(mid); note 2
V_DAC = V_ref(mid); note 2
I_o
zero output current
0
0.9V_DD
t_h
8
0
0.7V_DD
−
0
0.9V_DD
33
13.2
−
−
−
−
−
−
−
−
−5
0
0.28V_DD
50
−
−
−
−7
−25
−
0.1V_DD V
−
V_DD
V
−
22
ns
−
t_d
ns
−
0.3V_DD V
−
V_DD
V
−
10
pF
−
0.1V_DD V
−
V_DD
V
−
−
ns
−
−
ns
−
6
ns
−
6
ns
−
50
Ω
−
60
MHz
−
0.48V_DD
0.38V_DD
0.28V_DD
−
−
−
−
−
−37
30 × 10⁶
−
−
−
+5
V_DD
0.48V_DD
−
20
−
symbols/s
V
V
V
mA
V
V
kΩ
pF
mA
100
−
mA
−
+7
%
−
+25
nA
November 1994
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