TDA5636B Datasheet, PDF (10/28 Pages) NXP Semiconductors – 9 V VHF hyperband and UHF mixer/oscillator for TV and VCR 3-band tuners

Philips Semiconductors
9 V VHF hyperband and UHF mixer/oscillator
for TV and VCR 3-band tuners
Product specification
TDA5636B; TDA5637B
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Band C oscillator
f_OSC
f_shift
f_drift
oscillator frequency
frequency shift
frequency drift
note 4
470 −
∆V_P = 10%; note 5
−
−
∆T = 25 °C with compensation; note 6 −
−
5 s to 15 min. after switch on; note 7
−
−
900
500
1 400
400
MHz
kHz
kHz
kHz
LO output
S₂₂
output reflection coefficient see Fig.16
Y_o
output admittance
(Y_P + jωC_P)
see Fig.16
see Fig.16
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 8
HLO
LO signal harmonics with
respect to LO signal
R_L = 50 Ω
−
−
−
−
400 −
Ω
−
1.0 −
pF
83
91
100 dBµV
−
−
−10 dBc
−
−
−10 dBc
IF amplifier characteristics
S₂₂
output reflection coefficient magnitude; through 1 nF; see Fig.15
−
−21.3 −
dB
phase; through 1 nF; see Fig.15
−
49
−
deg
Z_o
output impedance
(R_s + jL_sω)
R_s; through 1 nF
L_s; through 1 nF
−
110 −
Ω
−
65
−
nH
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.17) plus the voltage transformation ratio of L6 to L7
(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. Limits are related to the tank circuits used in Fig.17. Frequency bands may be adjusted by the choice of external
components.
5. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from
V_P = 9 to 8.1 V and from V_P = 9 to 9.9 V.
6. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from
T_amb = 25 to 0 °C and from T_amb = 25 to 50 °C.
7. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on.
8. SRF: spurious signal on LO with respect to LO output signal:
RF level = 120 dBµV at f_RF < 180 MHz
RF level = 107.5 dBµV at f_RF = 180 to 225 MHz
RF level = 97 dBµV at f_RF = 225 to 860 MHz.
1996 Dec 02
10