ADCLK914BCPZ-WP Datasheet, PDF (1/12 Pages) Analog Devices – Ultrafast, SiGe, Open-Collector HVDS Clock/Data Buffer

FEATURES
7.5 GHz operating frequency
160 ps propagation delay
100 ps output rise/fall
110 fs random jitter
On-chip input terminations
Extended industrial temperature range: −40°C to +125°C
3.3 V power supply (VCC − VEE)
APPLICATIONS
Clock and data signal restoration
High speed converter clocking
Broadband communications
Cellular infrastructure
High speed line receivers
ATE and high performance instrumentation
Level shifting
Threshold detection
GENERAL DESCRIPTION
The ADCLK914 is an ultrafast clock/data buffer fabricated on
the Analog Devices, Inc., proprietary, complementary bipolar
(XFCB-3) silicon-germanium (SiGe) process. The ADCLK914
features high voltage differential signaling (HVDS) outputs
suitable for driving the latest Analog Devices high speed digital-
to-analog converters (DACs). The ADCLK914 has a single,
differential open-collector output.
The ADCLK914 buffer operates up to 7.5 GHz with a 160 ps
propagation delay and adds only 110 fs random jitter (RJ).
Ultrafast, SiGe, Open-Collector
HVDS Clock/Data Buffer
ADCLK914
FUNCTIONAL BLOCK DIAGRAM
V_REF
V_T
D
D
50Ω 50Ω
V_CC
ADCLK914
Q
Q
50Ω 50Ω
V_EE
Figure 1.
The input has a center tapped, 100 Ω, on-chip termination
resistor and accepts LVPECL, CML, CMOS, LVTTL, or LVDS
(ac-coupled only). A VREF pin is available for biasing ac-coupled
inputs.
The HVDS output stage is designed to directly drive 1.9 V each
side into 50 Ω terminated to VCC for a total differential output
swing of 3.8 V.
The ADCLK914 is available in a 16-lead LFCSP. It is specified
for operation over the extended industrial temperature range of
−40°C to +125°C.
Rev. A
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