PS20230 Datasheet, PDF (8/26 Pages) List of Unclassifed Manufacturers – COFDM demodulator with USB interface for PC-TV

PS20230
Pin
ADC pins
38
39
ADC power
pins
36
40, 37
41
44
43
USB power
pins
50
51
45, 53
52
49, 54
TEST
63, 65, 66
30, 31
Name
AIN
AINB
AVDD
AGND
AVD33
DVDD
DGND
VDDD33
VDDL18
VDDA33
VSSD
VSSA
TEST
TEST
Pin description
ADC positive input
ADC negative input
ADC analog supply
ADC analog supply
ADC I/O and RF level ADC supply
ADC digital supply
ADC digital ground
USB PHY Digital I/O supply
USB PHY Logic supply
USB PHY Analog supply
USB PHY Digital ground
USB PHY Analog ground
Test pins
Test pins
I/O
Note
I
Differential Analog
I
Differential Analog
V
mA
S
1.8
S
0
S
3.3
S
1.8
S
0
S
3.3
S
1.8
S
3.3
S
0
S
0
I
Connect to ground
0
I
Connect to VDD33
3.3
2.1.1 Pull-Up / Pull-Down Resistors
Pin RES1K5 must be connected to a 1.5 kohm (+/- 5%) resistor tied to 3.3V. This is used for the USB bus pull-
up.
Pin RES6K2 must be connected to a 6.2 kohm (+/- 1.0%) resistor tied to ground. This is used to bias the
USB band gap reference. A 0.1 µF capacitor should be connected in parallel with this.
PLESSEY SEMICONDUCTORS LTD
TAMERTON ROAD | ROBOROUGH | PLYMOUTH | DEVON | PL6 7BQ
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