TDA9330 Philips Semiconductors, TDA9330 Datasheet - Page 10

• Manufacturer Part Number: TDA9330
• Description: I2C-bus controlled TV display processors
• Manufacturer: Philips Semiconductors

Philips Semiconductors
The IC has an EHT compensation input which controls
both the vertical and the E-W output signals. The relative
control effect on both outputs can be adjusted via the
I
correction variable).
To avoid damage to the picture tube in the event of missing
or malfunctioning vertical deflection, a vertical guard
function is available at the sandcastle pin (pin SCO). The
vertical guard pulse from the vertical output stage
(TDA835x) should be connected to the sandcastle pin,
which acts as a current sense input. If the guard pulse is
missing or lasts too long, bit NDF is set in the status
register and the RGB outputs are blanked. If the guard
function is disabled via bit EVG, only NDF status bit NHF
is set.
The IC also has inputs for flash and overvoltage protection.
More details about these functions are given in Chapter
“Characteristics”; note 43.
2000 May 08
2
C-bus (sensitivity of vertical correction is fixed; E-W
I
2
C-bus controlled TV display processors
10
I
The slave address of the IC is given in Table 1. The circuit
operates up to clock frequencies of 400 kHz. Valid
subaddresses: 00 to 1F, subaddress FE is reserved for
test purposes. The auto-increment mode is available for
subaddresses.
Table 1 Slave address (8C)
2
C-BUS SPECIFICATION
A6
1
A5
0
A4
0
A3
0
TDA933xH series
A2
1
Preliminary specification
A1
1
A0
0
R/W
1/0