SAA7111A Datasheet, PDF (7/72 Pages) NXP Semiconductors – Enhanced Video Input Processor EVIP

Philips Semiconductors
Enhanced Video Input Processor (EVIP)
Product specification
SAA7111A
PIN
SYMBOL
(L)QFP64
RTS0
29
VS
30
HREF
31
V_SSD3
V_DDD3
VPO
(15 to 10)
32
33
34 to 39
V_SSD2
V_DDD2
VPO
(9 to 0)
40
41
42 to 51
FEI
52
GPSW
53
XTAL
54
XTALI
55
V_SSD1
56
V_DDD1
57
TRST
58
TCK
59
RTCO
60
I/O/P
O
O
O
P
P
O
P
P
O
I
O
O
I
P
P
I
I
O
DESCRIPTION
Two functions output; controlled by I²C-bus bit RTSE0.
RTSE0 = 0: odd/even field identification (HIGH = odd field). RTSE0 = 1: vertical
locked indicator; a HIGH state indicates that the internal Vertical Noise Limiter (VNL)
has locked.
Vertical sync signal (enabled via I²C-bus bit OEHV); this signal indicates the vertical
sync with respect to the YUV output. The HIGH period of this signal is approximately
six lines if the VNL function is active. The positive slope contains the phase
information for a deflection controller.
Horizontal reference output signal (enabled via I²C-bus bit OEHV); this signal is used
to indicate data on the digital YUV bus. The positive slope marks the beginning of a
new active line. The HIGH period of HREF is 720 Y samples long. HREF can be used
to synchronize data multiplexer/demultiplexer. HREF is also present during the
vertical blanking interval.
Ground for digital supply voltage input 3.
Digital supply voltage 3 (+3.3 V).
Digital VPO-bus (Video Port Out) signal; higher bits of the 16-bit VPO-bus or the
16-bit RGB-bus output signal. The output data rate, the format and multiplexing
scheme of the VPO-bus are controlled via I²C-bus bits OFTS0 and OFTS1. If I²C-bus
bit VIPB = 1 the six MSBs of the digitized input signal are connected to these outputs,
configured by the I²C-bus ‘MODE’ bits (see Figs 33 to 40):
LUMA → VPO15 to VPO8, CHROMA → VPO7 to VPO0.
Ground for digital supply voltage input 2.
Digital supply voltage 2 (+3.3 V).
Digital VPO-bus output signal; lower bits of the 16-bit YUV-bus or the 16-bit RGB-bus
output signal. The output data rate, the format and multiplexing schema of the
VPO-bus are controlled via I²C-bus bits OFTS0 and OFTS1. If I²C-bus bit VIPB = 1
the digitized input signal are connected to these outputs, configured by the I²C-bus
‘MODE’ bits (see Figs 33 to 40): LUMA → VPO15 to VPO8,
CHROMA → VPO7 to VPO0.
Fast enable input signal (active LOW); this signal is used to control fast switching on
the digital YUV-bus. A HIGH at this input forces the IC to set its Y and UV outputs to
the high impedance state.
General purpose switch output; the state of this signal is set via I²C-bus control and
the levels are TTL compatible.
Second terminal of crystal oscillator; not connected if external clock signal is used.
Input terminal for 24.576 MHz crystal oscillator or connection of external oscillator
with CMOS compatible square wave clock signal.
Ground for digital supply voltage input 1.
Digital supply voltage input 1 (+3.3 V).
Test reset input not (active LOW), for boundary scan test; notes 1, 2 and 3.
Test clock for boundary scan test; note 1.
Real time control output: contains information about actual system clock frequency,
subcarrier frequency and phase and PAL sequence.
1998 May 15
7