TDA8822 Datasheet, PDF (3/28 Pages) NXP Semiconductors – Universal I2C-bus programmable RF modulator

Philips Semiconductors
Universal I²C-bus programmable RF
modulator
Preliminary specification
TDA8822
QUICK REFERENCE DATA
V_CCA = V_CCD = 5 V; T_amb = 25 °C; in PAL B/G, PAL I, PAL D/K or NTSC; MD setting = 4; DEV setting = 2;
PS setting = 1; video input signal = 500 mV (p-p) EBU colour bars; audio input signal = 45 mV (p-p); 1 kHz sine wave;
unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
V_CCA
V_CCD
I_CC(tot)
m_d
P/S
V_RF
f_sc
∆f_sc
analog supply voltage
4.5 5.0
digital supply voltage
4.5 5.0
total supply current
−
60
modulation depth adjustment typical value for MD setting between 72.5 −
range
0 and 7
picture-to-sound ratio
adjustment range
typical value for PS setting between −18 −
0 and 7
RF output voltage level
frequency between 45 and 860 MHz 77
80
asymmetrical on a 75 Ω load
sound subcarrier frequency
4.5
−
sound subcarrier frequency for B/G, I, D/K, SC setting = 1, 2 or 3; 20
−
deviation range
typical value for DEV setting between
0 and 7
for M, N, SC setting = 0; typical value 10
−
for DEV setting between 0 and 7
5.5 V
5.5 V
72
mA
90.0 %
−11 dB
83
dBµV
6.5 MHz
45
kHz
22.5 kHz
1997 Jan 08
3