GA1085
GA1085 is 11-Output Configurable Clock Buffer manufactured by TriQuint Semiconductor.
S E M I C O N D U C T O R, I N C .
Figure 1. Block Diagram
FBIN
S1
REFCLK
S0
F1
F0
TEST 12 VDD 13
Phase Detector VCO Phase Select
4 VDD 3 2
Q10 Q9
11-Output Configurable Clock Buffer
Q0
GND 15 Q1 Q2
16 17
MUX Divide Logic ÷4, ÷5, or ÷6 Output Buffers Group A Group C
1 GND 28 27
Q8 Q7
Features
- Wide frequency range: 24 MHz to 105 MHz
- Output configurations: Four outputs at f REF Four outputs at f REF /2 Two outputs at f REF /2 ␣ ␣ ␣ ␣ with adjustable phase ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ ␣ or Five outputs at 2x f REF Three outputs at f REF Two outputs at f REF ␣ ␣ ␣ ␣ with adjustable phase
- Selectable Phase Shift:
- 2t,
- t, +t, and +2t (t = 1/f VCO)
- Low output-to-output skew: 150 ps (max) within a group
- Near-zero propagation delay:
- 350 ps +1000 ps (max)
- TTL-patible with 30 m A output...
