TDA5634T Datasheet, PDF (6/20 Pages) NXP Semiconductors – 9 V UHF mixer/oscillator for TV and VCR tuners

Philips Semiconductors
9 V UHF mixer/oscillator for TV and VCR
tuners
Product specification
TDA5634T
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
LO output; R_L = 100 Ω
Y_o
output admittance
(G_P + jC_Pω)
f_OSC = 470 MHz; see Fig.9; note 4
f_OSC = 900 MHz; see Fig.9; note 4
V_o
SRF
SHD
output voltage
spurious signal on LO output
with respect to LO output
signal
LO signal harmonics with
respect to LO signal
R_L = 50 Ω; V_P = 8.1 to 9.9 V;
T_amb = −10 to +80 °C
R_L = 50 Ω; note 5
R_L = 50 Ω
−
3
−
mS
−
0.5 −
pF
−
3.5 −
mS
−
0.5 −
pF
83
91
100 dBµV
−
−
−10 dBc
−
−
−10 dBc
Band C oscillator
f_OSC
oscillator frequency
f_shift
frequency shift
f_drift
frequency drift
V_t = 0.45 to 28 V; V_P = 8.1 to 9.9 V;
T_amb = −10 to +80 °C; note 6
∆V_P = 10%; note 7
∆T = 25 °C without compensation;
NP0 capacitors; note 8
470 −
−
−
−
−
∆T = 25 °C with compensation; note 9 −
−
5 s to 15 minutes after switch on;
without compensation; note 10
−
−
900 MHz
400 kHz
2.5 MHz
800 kHz
600 kHz
Notes
1. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency.
2. The gain is defined as the transducer gain (measured in Fig.7) plus the voltage transformation ratio of L3 to L2
(10 : 2, 15.4 dB including transformer loss).
3. The input level causing 10 kHz frequency detuning at the LO output; f_osc = f_RF + 33.4 MHz.
4. All S-parameters are referred to a 50 Ω system.
5. Measured with RF input voltage of 97 dBµV at 430 MHz < f_RF < 860 MHz.
6. Limits are related to the tank circuits used in Fig.7. Frequency bands may be adjusted by the choice of external
components.
7. 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 from V_P = 9 to 9.9 V.
8. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from
T_amb = 25 °C to 0 °C or from T_amb = 25 °C to 50 °C. Without compensation, the capacitors C11 to C15 are NP0.
9. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from
T_amb = 25 °C to 0 °C or from T_amb = 25 °C to 50 °C. With compensation, the capacitors C11 to C14 are N750 and
C15 is N470.
10. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on.
1996 Nov 7
6