TDA5632 Datasheet, PDF (7/20 Pages) NXP Semiconductors – 9 V VHF and UHF mixers/oscillators for TV and VCR cable tuners

Philips Semiconductors
9 V VHF and UHF mixers/oscillators for TV
and VCR cable tuners
Product specification
TDA5632; TDA5633
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Band C mixer including IF amplifier
f_RF
frequency range
note 1
469.5 −
G_v
voltage gain
f_RF = 469.50 MHz; R_L = 75 Ω; see Fig.7 27
30
f_RF = 887.5 MHz; R_L = 75 Ω; see Fig.7 27
30
NF
noise figure
f_RF = 469.50 MHz; R_L = 75 Ω
(not corrected for image)
f_RF = 887.5 MHz; R_L = 75 Ω
−
7.5
−
9.5
V_o
output voltage causing 1% f_RF = 887.5 MHz; R_L = 75 Ω; see Fig.8 107 110
cross modulation in channel
Z_i
input impedance (R_s + L_s) R_s; f_RF = 469.50 MHz
L_s; f_RF = 887.5 MHz
V_i
input voltage causing 10 kHz R_L = 75 Ω; note 2
pulling in channel
−
30
−
12
−
82
887.5
33
33
9.5
11.5
−
MHz
dB
dB
dB
dB
dBµV
−
Ω
−
nH
−
dBµV
Band C oscillator
f_osc
frequency range
f_shift
frequency shift
f_drift
frequency drift
note 3
513 −
∆V_P = 10%; note 4
−
−
∆T = 25 °C with compensation; note 5 −
−
5 s to 15 min after switching on; note 6 −
−
931 MHz
500 kHz
900 kHz
400 kHz
LO output
V_O
SRF
output voltage
spurious signal on LO output
with respect to LO output
signal
R_L = 50 Ω
R_L = 50 Ω; note 7
SHD
LO signal harmonics with
respect to LO signal
R_L = 50 Ω
83
91
100 dBµV
−
−14 −10 dB
−
−11 −10 dB
Notes
1. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency.
2. The input level causing 10 kHz detuning at the LO output; f_osc = f_RF + 43.5 MHz.
3. Limits are related to the tank circuit used in Fig.10. Frequency bands may be adjusted by the choice of external
components. Another UHF frequency range is available by modifying the tank circuit. The modification enables the
following frequency range:
a) RF frequencies from 363.5 to 803.5 MHz.
b) Oscillator frequencies from 407 to 847 MHz. For this UHF range, L4 = 3 turns (diameter = 3.5 mm).
4. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from
V_P = 9 to 8.1 V or V_P = 9 to 9.9 V.
5. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from
T_amb = 25 to 0 ^oC or T_amb = 25 to 50 ^oC.
6. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on.
7. SRF: spurious signal on LO output with respect to LO signal:
a) RF voltage level = 1 V at f_RF = 57.5 to 225 MHz.
b) RF level = 2.5 dBm at f_RF = 225 to 357.5 MHz.
c) RF level = −10 dBm at f_RF = 469.5 to 887.5 MHz.
1996 Aug 16
7