MK2771-15R IDT, Integrated Device Technology Inc, MK2771-15R Datasheet - Page 3

• Manufacturer Part Number: MK2771-15R
• Description: IC CLK SRC VCXO/SET-TOP 28-QSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Synthesizer, VCXOr

Specifications of MK2771-15R

• Pll: Yes
• Input: Crystal
• Output: CMOS
• Number Of Circuits: 1
• Ratio - Input:output: 2:8
• Differential - Input:output: No/No
• Frequency - Max: 100MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-QSOP
• Frequency-max: 100MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Descriptions
IDT™ VCXO AND SET-TOP CLOCK SOURCE
MK2771-15
VCXO AND SET-TOP CLOCK SOURCE
Number
10, 18,
4, 5, 8
19, 24
21, 22
Pin
11
12
13
14
15
16
17
20
23
25
26
27
28
1
2
3
6
7
9
CCLK2
CCLK1
VDDIO
PCLK1
PCLK2
13.5M
Name
PCS0
PCS1
ACLK
PCS2
ACS0
ACS1
GND
VDD
VDD
27M
54M
Pin
VIN
DC
SC
X2
X1
Tri-level input Communications clock select pin. Biased to M level if floating
Pin Type
Output
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Power
Input
Input
Input
Input
Input
Input
XO
—
XI
Processor clock select 0. Selects PCLKs on pins 11 and 12. See
table above. Internal pull-up resistor.
Crystal connection. Connect to a pullable 13.5 MHz crystal.
Crystal connection. Connect to a pullable 13.5 MHz crystal.
Connect to +5 V.
Voltage input to VCXO. Zero to 3 V signal which controls the
frequency of the VCXO.
Connect to +3.3 V or +5 V. Amplitude of inputs must, and outputs
will, match this.
Connect to ground.
Processor clock output number 1. Determined by status of
PCS2:0.
Processor clock output number 2. Determined by status of
PCS2:0.
Processor clock select 1. Selects PCLKs on pins 11 and 12. See
table above. Internal pull-up resistor.
Audio clock output. Determined by status of ACS1, ACS0 per
table above.
Don’t Connect anything to this pin.
13.50 MHz VCXO clock output.
Communications clock output 2 determined by status of SC per
table above.
Processor clock select 2. Selects PCLKs on pins 11 and 12. See
table above. Internal pull-up resistor.
Connect to +5 V.
Communications clock output 1 determined by status of SC per
table above.
27.00 MHz VCXO clock output.
54.00 MHz VCXO clock output.
Audio clock select 0. Selects ACLK on pin 14. See table above.
Internal pull-up resistor.
Audio clock select 1. Selects ACLK on pin 14. See table above.
Internal pull-up resistor.
3
Pin Description
VCXO AND SYNTHESIZER
MK2771-15
REV H 051310