ICS8430AY-61 IDT, Integrated Device Technology Inc, ICS8430AY-61 Datasheet - Page 12

• Manufacturer Part Number: ICS8430AY-61
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Frequency Synthesizerr

Specifications of ICS8430AY-61

• Number Of Elements: 1
• Supply Current: 155mA
• Pll Input Freq (min): 14MHz
• Pll Input Freq (max): 27MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: LQFP
• Output Frequency Range: 20.83 to 500MHz
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.465V
• Operating Temperature Classification: Commercial
• Pin Count: 32
• Lead Free Status / Rohs Status: Not Compliant

T
Figure 6A and Figure 6B show examples of termination for
2.5V LVPECL driver. These terminations are equivalent to ter-
minating 50Ω to V
8430AY-61
ERMINATION FOR
F
VCCO=2.5V
VCCO=2.5V
IGURE
F
2,5V LVPECL
Driv er
IGURE
2,5V LVPECL
Driv er
6A. 2.5V LVPECL D
6C. 2.5V LVPECL T
CC
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
- 2V. For V
2.5V LVPECL O
CCO
RIVER
= 2.5V, the V
2.5V
R1
250
ERMINATION
R1
50
R2
62.5
T
ERMINATION
R3
250
UTPUT
R2
50
R4
62.5
E
CCO
XAMPLE
+
-
+
-
E
- 2V is very
XAMPLE
2.5V
2.5V
www.idt.com
500MH
12
close to ground level. The R3 in Figure 6B can be eliminated
and the termination is shown in Figure 6C.
F
VCCO=2.5V
IGURE
Z
, C
2,5V LVPECL
Driv er
6B. 2.5V LVPECL D
RYSTAL
LVPECL F
Zo = 50 Ohm
Zo = 50 Ohm
-
TO
-3.3V, 2.5V D
REQUENCY
RIVER
ICS8430-61
R1
50
T
ERMINATION
S
R2
50
R3
18
IFFERENTIAL
YNTHESIZER
REV. D JULY 27, 2010
+
-
E
XAMPLE
2.5V