STCD1020 Datasheet, PDF (1/40 Pages) STMicroelectronics – Multi-channel clock distribution circuit

STCD1020, STCD1030, STCD1040
Multi-channel clock distribution circuit
Features
■ 2, 3 or 4 outputs buffered clock distribution
■ Single-ended sine wave or square wave clock
input and output
■ Individual clock enable for each output
■ Lower fan-out on clock source
■ No AC coupling capacitor needed at the input
■ Ultra-low phase noise and standby current
■ 2.5 V to 3.6 V supply voltage^(a)
■ 10 pF typical load driving capability
■ Available in TDFN packages
– STCD1020 - 8-lead (2 mm x 2 mm)
– STCD1030 - 10-lead (2 mm x 2.5 mm)
– STCD1040 - 12-lead (2 mm x 3 mm)
■ Operational temperature : –40°C to 85°C
Applications
■ Multi-mode RF clock reference
■ Baseband peripheral devices clock reference
TDFN (8, 10 or 12 lead)
Description
The STCD1020, STCD1030 and STCD1040 are
2, 3 or 4 outputs unity gain clock distribution
circuits, which are used to provide a common
frequency clock to multi-mode mobile RF
applications. It can also be used for those
baseband peripheral applications in a mobile
phone such as WLAN, Bluetooth, GPS and DVB-
H as a clock reference. The STCD1020,
STCD1030 and STCD1040 isolate each device
driven by their clock outputs and minimize
interference between the devices. Each of the
clock buffers can be disabled to lower the power
consumption if the connected device does not
need the clock. The STCD1020, STCD1030 and
STCD1040 accept commonly used mobile master
clock frequencies ranging from 10 MHz to 52
MHz.
a. For the 1.65 to 2.75 V version, please contact local ST
sales office
The STCD1020, STCD1030 and STCD1040 are
available in 2 mm x 2 mm 8-lead, 2 mm x 2.5 mm
10-lead and 2 mm x 3 mm 12-lead TDFN
packages and can be operated with a single 2.8 V
(or 1.8 V) supply. The operational temperature is
–40°C to +85°C.
Table 1. Device summary
Order code
Operating temperature range Channel
Supply
Package
STCD1020RDG6E
–40°C to 85°C
2
2.8 V
TDFN8
STCD1030RDH6E
STCD1040RDM6F
–40°C to 85°C
–40°C to 85°C
3
2.8 V
4
2.8 V
TDFN10
TDFN12
May 2008
Rev 4
1/40
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