datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

GS1545-CQR View Datasheet(PDF) - Gennum -> Semtech

Part Name
Description
View to exact match
GS1545-CQR
Gennum
Gennum -> Semtech Gennum
GS1545-CQR Datasheet PDF : 19 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
PIN DESCRIPTIONS (Continued)
NUMBER
SYMBOL
32, 33
SP_VEE
34
PCLK_OUT
35
PCLK_VCC
36
PCLK_VEE
41, 42, 43, 44,
45, 46, 47, 48,
49, 50, 53, 54,
55, 56, 59, 60,
61, 62, 63, 64
72
73
74
DATA_OUT[19:0]
LFA_VCC
LFA
LBCONT
75
LFA_VEE
76
DFT_VEE
79, 80
81, 85
86
89
91
DM, DM
LFS, LFS
IJI
VCO
VCO
93, 96
98
PLCAP, PLCAP
PLL_LOCK
105
BYPASS
LEVEL
Power
TTL
Power
Power
TTL
Power
Analog
Analog
Power
Power
Analog
Analog
Analog
Analog
Analog
Analog
TTL
TTL
TYPE
DESCRIPTION
Input Negative Supply. Most negative power supply connection for the
parallel output stage.
Output
Output Clock. The device uses PCLK_OUT for clocking the output
data stream from DATA_OUT[19:0]. This clock is also used to clock
the data into the GS1500 HDTV Deformatter or GS1510 Deformatter.
Input Positive Supply. Most positive supply connection for parallel clock
output stage.
Input Negative Supply. Most negative power supply connection for parallel
clock output stage.
Output
Parallel Data Output Bus. The device outputs a 20 bit parallel data
stream running at 74.25 or 74.25/1.001MHz on DATA_OUT[19:0].
DATA_OUT[19] is the MSB and DATA_OUT[0] is the LSB.
Input Positive Supply. Loop filter most positive power supply connection.
Output Control Signal Output. Control voltage for GO1515 VCO.
Input Control Signal Input. Used to provide electronic control of Loop
Bandwidth.
Input Negative Supply. Loop filter most negative power supply connection.
Input
Most negative power supply connection - enables the jitter
demodulator functionality. This pin should be connected to ground. If
left floating, the DM function is disabled resulting in a current saving of
340µA.
Output Test Signal. Used for manufacturing test only.
These pins must be floating for normal operation.
Input Loop Filter Connections.
Output Status Signal Output. Approximates the amount of excessive jitter on
the incoming DDI and DDI input.
Input Control Signal Input. Input pin is AC coupled to ground using a 50
transmission line.
Input
Control Signal Input. Voltage controlled oscillator input. This pin is
connected to the output pin of the GO1515 VCO.
This pin must be connected to the GO1515 VCO output pin via a 50
transmission line.
Input Control Signal Input. Phase lock detect time constant capacitor.
Output
Status Indicator Signal. This signal is a combination (logical AND) of
the carrier detect and phase lock signals.
When input is present and PLL is locked, the PLL_LOCK goes high
and the outputs are valid. When the PLL_LOCK output is low the data
output is muted (latched at the last state).
PLL_LOCK is independent of the BYPASS signal.
Input
Control Signal Input. Selectable input that controls whether the input
signal is reclocked or passed through the chip.
When BYPASS is high; the input signal is reclocked.
When BYPASS is low; the input signal is passed through the chip and
not reclocked. Muting does not effect bypassed signal.
GENNUM CORPORATION
8 of 19
522 - 28 - 05
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]