TDA8260TW Datasheet, PDF (11/23 Pages) NXP Semiconductors – Satellite Zero-IF QPSK/8PSK downconverter with PLL synthesizer

Philips Semiconductors
Satellite Zero-IF QPSK/8PSK
downconverter with PLL synthesizer
Product specification
TDA8260TW
CHARACTERISTICS
T_amb = 25 °C; V_CC = 5 V; R_L = 1 kΩ and V_o(p-p) = 750 mV on baseband output pins IBBOUT and QBBOUT; unless
otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP. MAX. UNIT
Supply
V_CC
I_CC
V_CC(POR)
supply voltage
supply current
supply voltage threshold for
POR active
4.75
5.00
5.25
−
155
−
−
2.7
−
Performance from RF inputs to I, Q outputs (from pins RFA, RFB to pins IBBOUT, QBBOUT)
P_L(LO)
LO power leakage through
pins RFA and RFB
−
−75
−
G_{v(RF-BBOUT)(max)} maximum voltage gain from pins V_AGC = 3 V
RFA, RFB to IBBOUT, QBBOUT
55
57
−
∆G_v
V_o(p-p)
AGC range
output voltage (peak-to-peak
value)
V_AGC = 0 to 3 V
48
recommended value −
50
−
750
−
IP2i
IP3i
F
∆G_v(IQ)
2nd-order interception point
3rd-order interception point
noise figure
voltage gain mismatch between
I and Q
at RF input; V_AGC = 0 V −
at RF input; V_AGC = 0 V −
at maximum gain;
−
V_AGC = 3 V
in 22.5 MHz band
−
19
−
14
−
18
−
−
1
Eq
quadrature error (absolute
value)
V_AGC = 1.5 V;
−
V_o(p-p) = 750 mV;
measured in baseband
0
3
G_v(IQ)ripple
voltage gain ripple for I or Q
in 30 MHz band
−
−
2
t_d(g)(IQ)(R)
group delay ripple for I or Q
in 22.5 MHz band
−
5
−
RR₆₀
ripple rejection for I and Q
f_ripple = 60 MHz
30
−
−
Pulling sensitivity
3/4LO
sensitivity to pulling on the third see Table 9
harmonic of the external VCO
−
−40
−35
5/4LO
sensitivity to pulling on the fifth see Table 9
harmonic of the external VCO
−
−40
−35
V
mA
V
dBm
dB
dB
mV
dBm
dBm
dB
dB
deg
dB
ns
dB
dBc
dBc
VCO and synthesizer
f_osc
ϕ_n(osc)
oscillator frequency range
oscillator phase noise
ϕ_n
phase noise on baseband
outputs
950
in the satellite band; −
f_offset = 100 kHz; out of
PLL loop bandwidth
f_offset = 1 and 10 kHz; −
f_COMP = 1 MHz with
appropriate loop filter
and charge pump
setting
−
−100
2 175
−94
MHz
dBc/Hz
−
−78
dBc/Hz
2004 Sep 03
11