TDA7427AD1 STMicroelectronics, TDA7427AD1 Datasheet - Page 14

• Manufacturer Part Number: TDA7427AD1
• Description: IC SYNTHESIZER/IF COUNTER SO-28
• Manufacturer: STMicroelectronics
• Type: PLL Frequency Synthesizerr

Specifications of TDA7427AD1

• Pll: Yes
• Input: Clock, Crystal
• Output: Clock, Crystal
• Number Of Circuits: 1
• Ratio - Input:output: 3:1
• Differential - Input:output: No/No
• Frequency - Max: 290MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 4.5 V ~ 11 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Frequency-max: 290MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7427A
PLL COUNTER 2 (MSB)
Swallow mode: fvco/fsyn = LSB + MSB + 32
Direct mode: fvco/fsyn = LSB + MSB + 1
PLL REFERENCE COUNTER 1 (LSB)
PLL REFERENCE COUNTER 2 (MSB)
f
14/21
OSC
RC15
PC15
MSB
MSB
MSB
RC7
D7
D7
D7
/f
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
REF
= LSB + MSB + 1
PC14
RC14
RC6
D6
D6
D6
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
RC13
PC13
RC5
D5
D5
D5
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
PC12
RC12
RC4
D4
D4
D4
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
PC11
RC11
RC3
D3
D3
D3
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
PC10
RC10
RC2
D2
D2
D2
0
0
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
1
1
1
RC1
RC9
PC9
D1
D1
D1
0
0
1
0
0
1
1
0
0
1
0
0
1
1
0
0
1
0
0
1
1
LSB
PC8
LSB
RC0
LSB
RC8
D0
D0
D0
0
1
0
0
1
0
1
0
1
0
0
1
0
1
0
1
0
0
1
0
1
MSB = 0
MSB = 256
MSB = 512
MSB = 64768
MSB = 65024
MSB = 65280
MSB = 65536
Bit name
LSB = 0
LSB = 1
LSB = 2
LSB = 252
LSB = 253
LSB = 254
LSB = 255
Bit name
MSB = 0
MSB = 256
MSB = 512
MSB = 64768
MSB = 65024
MSB = 65280
MSB = 65536
Bit name
FUNCTION
FUNCTION
FUNCTION
Subaddress =03H
Subddress = 02H
Subddress = 04H