SPHE8281D 查看數據表（PDF） - Unspecified
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SPHE8281D Datasheet PDF : 35 Pages
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Preliminary
SPHE8281D/Dx
Symbol
UA0_TX/GPIO
Pin No. I/O
Description
182
I/O UART #0 data transmit or GPIO
Priority selection
sft_cfg2[3:2] =2’b01
sft_cfg3[13:12]=2’b01
sft_cfg4[15:13]=3’b011
Function
Dir
UART0_TX (default)
O
TV_VSYNC
I/O
VSYNC_PC
O
(other)
GPIO[61]
I/O
V_COMP
V_BIAS
V_FSADJ
V_REFOUT
V_DAC[0]
VDD_TVA0
VSS_TVA0
VDD_TVA1
VSS_TVA1
V_DAC[3]
V_DAC[4]
VDD_TVA2
V_DAC[5]
VSS_TVA2
PLL_AVDD
LPFO
LPFN
VREFO
PDFLT
FDFLT
LPFNIN
LGIN
PLL_DS_AVSS
RFI
CNIN
SLVL
DS_AVDD
RF_AVDD
GMRES
AGCCAP
183
A
(VDAC CBU) Compensation pin. Connect a 0.1pF ceramic capacitor to bypass this pin to
VSSA. The lead length must be kept as short as possible to avoid noise.
184
(VDAC CBL) Bias voltage. Connect a 0.1pF ceramic capacitor to bypass this pin to VSSA.
The lead length must be kept as short as possible to avoid noise.
185
A
Full-Scale adjustment control pin. The full-scale current of D/A converters can be adjusted
by connecting a resistor (RSET) between this pin and ground.
186
A
(VDAC VREF/bandgap output) Voltage reference output. It generates typical 1.2V voltage
reference and may be used to drive V_REFIN pin directly.
187
A
Video DAC output #0. This is a high-impedance current source output. These outputs can
drive a 37.5 load directly.
188
S
TV DAC power supply #0
189
S
TV DAC ground pin #0
190
S
TV DAC power supply #1
191
S
TV DAC ground pin #1
192
A
Video DAC output #3. This is a high-impedance current source output. These outputs can
drive a 37.5 load directly.
193
A
Video DAC output #4. This is a high-impedance current source output. These outputs can
drive a 37.5 load directly.
194
S
TV DAC power supply #2
195
A
Video DAC output #5. This is a high-impedance current source output. These outputs can
drive a 37.5 load directly.
196
S
TV DAC ground pin #2
197
S
Servo PLL 3.3V power
198
A
NC pin
199
A
NC pin
200
A
201
A
202
A
203
A
204
A
205
S
Servo PLL/Data-slicer ground
206
A
207
A
208
A
209
S
Servo Data slicer 3.3V power
210
S
Servo RF 3.3V power
211
A
External reference resistor input.
212
A
External AGC capacitor connected to ground.
© Sunplus Confidential
20
Contents are subject to change without Notice
MAY. 19, 2005
Preliminary Version: 0.1
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