VccD
IREF
QD2
QA0+
QD1
QA0-
Sel_Freq1
V
CCA
QD0-
QA1+
QD0+
QA1-
V
GND DD_PLL2
QA2+ V
DDA2
QA2-
GND
V
CCA
V
CCR
QA3+ Qref2
QA3-
Qref1
GND Qref0
VDDA1 VccR
PI6LC4833
Clock Generator for Power PC
Features Description
2.5/3.3V supply voltage e Th PI6LC4833 implements Pericom's advanced LC VCO tech -
nology and is specicfi ally designed for Power PC network pro -
4 HCSL 100/125/200/250MHz outputs with OE
cessor (Freescale MPC8548, MPC8572, AMCC 460, AMI732).
2 LVCMOS 33/50/66/100MHz selectable outputs
This high performance device is optimized to generate CPU core/
5 LVCMOS 25MHz or 125MHz outputs
PCI clock, high performance PCIe Gen1/2 Clock, SRIO, Gigabit
Ethernets MAC and PHY clock. All outputs are generated from
1 LVPECL 312.5MHz, 156.25MHz or 125MHz output
25MHz external clock input or crystal.
1 CMOS 156.25MHz or 125MHz output
1 LVPECL 125MHz or 25MHz output
Application
25MHz crystal or differential input
Router/Switch
0.5ps (typ) RMS integrated phase noise design at 3.3V
operation
OLT, BSC, WLAN, Wireless gateway
1.0ps (typ) RMS integrated phase noise design at 2.5V
Wireless
operation
PLL Bypass mode for test
Industrial Temperature -40C to 85C
TQFN - 56 package
Pin Configuration (56-Pin TQFN)
56 55 54 53 52 51 50 49 48 47 46 45 44 43
42
OC-B 1 FA1
FB0 41
2 FA0
FB1 40
3 OC-A
V
4 39 SS1
CCB
QB0
5 38 SS0
QB1 PLL_BYPS
6 37
V VSEL_33
7 36
DD_OSC
GND
X1
8 35 V
CCC1
X2 9 34 QC1
IN+ 10 33 V
CCC0
IN- 11 32 QC0-
IN_Sel 12 31
QC0+
OC-R
13 30 SEL_FREQ3
Sel_Freq2
14 29 QC-C
15 16 17 18 19 20 21 22 23 24 25 26 27 28
All trademarks are property of their respective owners. www.pericom.com P-0.1 06/14/11
11-0074 1PI6LC4833
Clock Generator for Power PC
Block Diagram
FB0 FB1 SS1 I
SS0 ref F F
A1 A0
QA3+
QA3-
QA2+
QA2-
IN_Sel
QA1+
QA1-
Divider
QA0+
X1 QA0-
Ring
OSC PLL-BYPS
PLL1
X2
Divider QB0
/QB1
MUX
IN+
PLL-BYPS
QCO+
Diff
IN-
Divider
QCO-
LC
S
QC1
PLL2
Sel-Freq3 PLL-BYPS
QDO+
PLL_BYPS
QDO-
Divider
IN1
QD1
OC_A
IN2
QD2
OC_B
S
OC_C
PLL-BYPS
OC_R
Qref0
IN1
VSEL_33
Qref1
Qref2
IN2
S
PLL-BYPS
Sel-Freq1 Sel-Freq2
All trademarks are property of their respective owners. www.pericom.com P-0.1 06/14/11
11-0074 2