TDA8051 Datasheet, PDF (7/24 Pages) NXP Semiconductors – QPSK receiver

Philips Semiconductors
QPSK receiver
Product specification
TDA8051
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX.
UNIT
V_o(DC)
R_o
DC output level
output resistance
−
1.3 −
V
−
75 −
Ω
Quadrature demodulator: R_s = 75 Ω/R_i = 20 kΩ unless otherwise specified
V_I(DC)
V_i
f_i
R_i
C_i
RL_I
V_o(I-Q)
DC input level
input level
input carrier frequency
input resistance
input capacitance
input Return Loss
output level on pin I_OUT1 or
Q_OUT1
internally set
−
1−
V
−20
− +10
dBmV
44
− 130
MHz
−
75 −
Ω
−
2.5 −
pF
−
−12 −
dB
−
22 −
dBmV
B_o(I-Q)
output 3 dB bandwidth
LO = 200 MHz;
−
RF = 100 to 130 MHz
35 38
MHz
C/N
V_leak(LO)
V_AGC(r)
V_AGC(s)
V_AGC
carrier to noise ratio at
500 kHz on pin at I_OUT1 or
Q_OUT1
LO leakage on pin
DEMOD_IN
AGC range
AGC slope maximum
gain control voltage at
AGC_IN
V_I = −20 dBmV;
V_{o(I and Q)} = 22 dBmV
V_I = 10 dBmV;
V_{o(I and Q)} = 22 dBmV
f_LO = 140 to 260 MHz;
f_LO/2 = 70 to 130 MHz
f_LO = 200 MHz;
f_RF = 100.25 MHz at
−20 to +10 dBmV;
f_BF = 250 kHz at 22 dBmV
f_LO = 200 MHz;
f_RF = 100.25 MHz at
−20 to +10 dBmV;
f_BF = 250 kHz at 22 dBmV
−
88
−
93
−
−
30
−
−
30
10% V_CCA −
−
dBc/Hz
−
dBc/Hz
−15
dBmV
−
dB
−
dB/V
90% V_CCA V
G_max
max. conversion gain
f_LO = 260 MHz;
42
−−
dB
f_RF = 130.25 MHz at
−20 dBmV; V_AGC = 4.5 V
G_min
min. conversion gain
f_LO = 140 MHz;
−
f_RF = 70.25 MHz at
10 dBmV V_AGC = 0.5 V
− 12
dB
∆Φ_I-Q
phase error between I and Q f_LO = 140 to 260 MHz;
−
±3 −
deg
channels
f_RF = 70.25 to 130.25 MHz;
f_BF = 250 kHz at 22 dBmV
over specified input range
∆G_I-Q
gain error between I and Q f_LO = 140 to 260 MHz;
−
±1 −
dB
channels
f_RF = 70.25 to 130.25 MHz;
f_BF = 250 kHz at 22 dBmV
over specified input range
1999 Aug 20
7