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TMC22091R0C Datasheet(PDF) 9 Page - Cadeka Microcircuits LLC.

Part # TMC22091R0C
Description  Digital Video Encoders/Layering Engine
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Manufacturer  CADEKA [Cadeka Microcircuits LLC.]
Direct Link  http://www.cadeka.com
Logo CADEKA - Cadeka Microcircuits LLC.

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PRODUCT SPECIFICATION
TMC22091/TMC22191
9
CS
6
72
TTL
Chip Select. When CS is HIGH, the microprocessor interface
port, D7-0, is set to HIGH impedance and ignored. When CS is
LOW, the microprocessor can read or write parameters over
D7-0. One additional falling edge of CS is needed to move input
data to its assigned working registers.
R/W
7
73
TTL
Bus Read/Write Control. When R/W and CS are LOW, the
microprocessor can write to the control registers or CLUT over
D7-0. When R/W is HIGH and CS is LOW, it can read the
contents of any CLUT address or control register over D7-0.
RESET
5
71
TTL
Master Reset Input. Bringing RESET LOW sets the software
reset control bit, SRESET, LOW, forcing the internal state
machines to their starting states and disabling all outputs.
Bringing RESET HIGH synchronizes the internal pixel clock
(PCK = PXCK / 2) to maintain a defined pipeline delay through
the TMC22x91. If HRESET is set HIGH, the encoder is enabled
when RESET goes HIGH. If HRESET is LOW, the host restarts
the TMC22x91 by setting SRESET HIGH. RESET does not
affect the CLUT or the control registers, except SRESET.
Video Output
COMPOSITE
33
2
1 V P-P
NTSC/PAL Video. Analog output of composite D/A converter,
nominally 1.35 volt peak-to-peak into a 37.5
Ω load.
LUMA
35
5
1 V P-P
Luminance-only Video. Analog output of luminance D/A
converter, nominally 1.35 volt peak-to-peak into a 37.5
Ω load.
CHROMA
37
8
1 V P-P
Chrominance-only Video. Analog output of chrominance D/A
converter, nominally 1.35 volt peak-to-peak into a 37.5
Ω load.
Analog Interface
VREF
30
98
+1.23 V
Voltage Reference Input. External voltage reference input,
internal voltage reference output, nominally 1.235 V.
COMP
39
10
0.1
µF
Compensation Capacitor. Connection point for 0.1
µf
decoupling capacitor.
RREF
31
99
392
Current-setting Resistor. Connection point for external
current-setting resistor for D/A converters. The resistor (392
Ω)
is connected between RREF and AGND. Output video levels
are inversely proportional to the value of RREF.
JTAG Test Interface
TDI
25
93
TTL
Data Input Port. Boundary scan data input port.
TMS
24
92
TTL
Scan Select Input. Boundary scan (HIGH)/normal operation
(LOW) selector.
TCK
23
91
TTL
Scan Clock Input. Boundary scan clock.
TDO
22
90
TTL
Data Output Port. Boundary scan data output port.
Power Supply
VDD
27, 64, 81 41, 62, 95
+5 V
Positive digital power supply.
VDDA
40-43
13-17
+5 V
Positive analog power supply.
DGND
10, 26, 65,
80
42, 61, 76,
94
0.0 V
Digital Ground.
AGND
32, 34, 36,
38
4, 6, 9,
100
0.0 V
Analog Ground.
Pin Descriptions (continued)
Pin Name
Pin Number
Value
Pin Function Description
84-Lead
PLCC
100-Lead
MQFP


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