TDA8261TW Datasheet, PDF (3/22 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
TDA8261TW
Performance summary
TDA8261TW performance:
• Noise figure at maximum gain = +18 dB
• High linearity; IP2 = +19 dBm and IP3 = +14 dBm
• Low phase noise on baseband outputs: −78 dBc/Hz
(f_offset = 1 and 10 kHz; f_COMP = 1 MHz)
• 0 to 50 dB variable gain with AGC control
• AGC linearity <1 dB/bit with an 8-bit DAC
• Maximum I-to-Q amplitude mismatch = 1 dB
• Maximum I-to-Q phase mismatch = 3°
• Signal rates from 1 to 45 Msymbol/s (depending on the
external filter).
System performance, for example, in a tuner application
with the TDA8261TW placed after a low-cost discrete
LNA:
• Noise figure at maximum gain = 8 dB
• High linearity; IP2 = 15 dBm and IP3 = 5 dBm
• 0 to 50 dB variable gain with AGC control.
Specification limitation
Please note that this data sheet applies to versions C2 and
above only, it does not apply to version C1. For further
information, please contact your Philips Semiconductors
representative.
QUICK REFERENCE DATA
SYMBOL
V_CC
I_CC
V_o(p-p)
∆Φ
f_osc
ϕ_n
∆G_v
V_XTOUT(p-p)
T_amb
PARAMETER
CONDITIONS
MIN.
supply voltage
4.75
supply current
−
output voltage
−
(peak-to-peak value)
quadrature error
−
oscillator frequency
950
phase noise on baseband
outputs
f_offset = 1 and 10 kHz;
−
f_COMP = 1 MHz with
appropriate loop filter and
charge pump
dynamic range of voltage gain from pins RFA or RFB to 48
pins IBBOUT or QBBOUT
crystal oscillator output
voltage on pin XTOUT
(peak-to-peak value)
ambient temperature
T2 = 1; T1 = 0; T0 = 0; 500
driving a load of
C_L = 10 pF; R_L = 1 MΩ
−20
TYP.
5.0
130
750
−
−
−
50
650
−
MAX.
5.25
−
−
UNIT
V
mA
mV
3
2 175
−78
deg
MHz
dBc/Hz
−
dB
−
mV
+85
°C
ORDERING INFORMATION
TYPE NUMBER
TDA8261TW
NAME
HTSSOP32
PACKAGE
DESCRIPTION
plastic, thermal enhanced thin shrink small outline package;
32 leads; body width 6.1 mm; lead pitch 0.65 mm; exposed die pad
VERSION
SOT549-3
2004 Dec 02
3