TDA8822M Philips Semiconductors, TDA8822M Datasheet - Page 16

• Manufacturer Part Number: TDA8822M
• Description: Universal I2C-bus programmable RF modulator
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Notes
1. Ratio between the CCIR 17-line bar amplitude (corresponding to the level difference between black and white;
2. Measured on CCIR 330 line, corresponding to a 5-step staircase with a chroma carrier of amplitude equal to 0.3
3. Measured with a spectrum analyser with ‘peak hold’ function, applying a 500 mV (p-p) sine wave at the video input
4. To have a deviation between 50 and 250 kHz, the audio frequency must be higher than 100 Hz.
5. Measured with an audio frequency of 1 kHz with a level adjusted to get a deviation of 50 kHz with DEV setting = 2,
1997 Jan 08
XTAL characteristics
|Z
Output Port characteristics
V
I
I
TPSG pin characteristics
V
V
I
I
I
V
I
f
V
V
I
I
V
PORT(lk)
PORT(sink)
TPSGL
TPSGH
TPSG(sink)
2
SCL
IH
IL
SYMBOL
PORT
TPSG(on)
TPSG(off)
TPSG(sink)
IH
IL
SDA(ack)
C-bus receiver characteristics, pins SCL and SDA
Universal I
modulator
XTAL
see Fig.4) and the RMS value of the noise on a black line (line 22 or 335) measured on the video signal after
demodulation. Measurement is done for frequencies between 200 kHz and 5 MHz. Measurement is unweighted.
times the voltage between sync pulse and white (see Fig.5). The video signal is 500 mV (p-p). The modulation depth
is adjusted using the I
of the IC, with a sweeping frequency between 0.5 and 6.0 MHz. The reference is the value measured at 1.0 MHz.
using CCIR 468-3 weighting filter, with a quasi-peak detection. The input signal has pre-emphasis and the receiver
has de-emphasis. Video signal is 500 mV (p-p) EBU colour bars on pin VIDEO.
|
XTAL input impedance
low voltage
off-state leakage current
sinking current in the port
voltage on pin TPSG to switch the
TPSG on
voltage on pin TPSG to switch the
TPSG off
LOW input current in pin TPSG
HIGH input current in pin TPSG
output sinking current in pin TPSG
voltage on pin TPSG used as output
frequency on SCL line
HIGH level input voltage
LOW level input voltage
HIGH level input current
LOW level input current
acknowledge output voltage on SDA
2
C-bus programmable RF
2
PARAMETER
C-bus to MD setting = 4 (82.5% typical modulation depth).
absolute value;
with a 4 MHz crystal
port on; I
port off; V
port on
TPSG to DGND
TPSG to V
TPSG set on using
I
TPSG set on using
I
V
V
during acknowledge
pulse; I
2
2
IH
IL
C-bus
C-bus
= 0 V; V
16
= 5 V; V
CONDITIONS
IL
PORT
= 3 mA
CCD
CCD
CCD
CCD
= 5.5 V
= 10 mA
= 0 or 5 V
= 0 or 5 V
600
10
0
3.0
10
3
0
100
10
MIN.
1200
150
150
TYP.
Preliminary specification
400
10
1.5
V
100
400
100
5.5
1.5
10
0.4
TDA8822
MAX.
CCD
mV
mA
V
V
mA
mV
kHz
V
V
V
UNIT
A
A
A
A
A