TDA8822 Datasheet, PDF (15/28 Pages) NXP Semiconductors – Universal I2C-bus programmable RF modulator

Philips Semiconductors
Universal I²C-bus programmable RF
modulator
Preliminary specification
TDA8822
SYMBOL
PARAMETER
CONDITIONS
MIN.
NICAM characteristics
Z_NICAM
P/N
NICAM input impedance
level between picture carrier and
NICAM carrier
f_NICAM
frequency response of the NICAM
input
BER
EHD
bit error rate
eye-height degradation
10
NICAM input
−23
level = 150 mV (p-p);
no video signal
for frequencies between 5 −1
and 8 MHz; reference for
6.5 MHz
note 11
−
note 11
−
Channel characteristics
f_RF
RF frequency range
with application VHF 1 47
with application VHF 3 174
with application UHF
470
f_RF(acc)
V_RF
picture carrier accuracy
note 7
−75
output level on RF outputs during sync. between 45 and 860 MHz 77
pulse, loaded with 75 Ω
V_RF(flat)
flatness of the RF output level across reference is centre of
−2
each band
each band
Z_o(RF)
SPU_o
SPU_2PC
RF output impedance
spurious outside channel
RF second harmonic level
single ended
−
note 8
−
on asymmetrical output at −
low end of UHF band
SPU_2SC sound carrier second harmonic level
−
SPU_3SC sound carrier third harmonic level
−
SPU_fref
reference frequency spurious
measured with Philips −
application board
CHR_BEAT
NIC_BEAT
chroma beat
NICAM beat
note 9
−
note 10
−
Video charge pump output and video tuning amplifier: VCP and VVT
I_VCP
I_VCP(lk)
V_VVT(min)
output current
off-state leakage current
minimum tuning voltage on pin VVT
−
−10
27 kΩ resistor between −
pin VVT and +33 V
I_VVT(lk)
leakage current on pin VVT
27 kΩ resistor between −
pin VVT and +33 V; high
impedance test mode
Audio charge pump output: ACP
I_ACP
output current
−
I_ACP(lk)
off-state leakage current
−10
V_ACP
tuning voltage range for the audio PLL,
1.5
on pin ACP
TYP. MAX.
−
−
−20 −17
−
+1
10^−6 −
4
−
−
88
−
230
−
860
−
+75
80
83
0
2
75
−
−
−40
−
−10
−65 −60
−65 −60
−
−40
−
−63
−
−63
50
−
−
10
−
0.2
−
10
3
−
−
10
−
4.5
UNIT
kΩ
dB
dB
%
MHz
MHz
MHz
kHz
dBµV
dB
Ω
dBc
dBc
dBc
dBc
dBc
dBc
dBc
µA
nA
V
µA
µA
nA
V
1997 Jan 08
15