TDA7427AD1 STMicroelectronics, TDA7427AD1 Datasheet - Page 7

• 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

Figure 1. FM and AM (SW) operation (swallow mode)
Table 2. Control Register Functions.
REGISTER NAME
DOUT2....6
PLLSTOP
CURRH
INLOCK
LPIN1/2
DOUT1
LDENA
IFENA
IFCM
OSC
IRC
EW
RC
IFS
PM
PC
CF
D
A
B
OSC IN
AM IN
FM IN
Programmable counter for VCO frequency
Reference counter PLL
Reference counter IF
IF counter mode selector
Frequency error window IF counter
Enable IFRC
Center frequency IF counter
Sampling time IF counter
Stby, FM, AM, AM swallow mode selector
Programmable delay and phase error for lock detector
Loop filter input select
PLL stop
Charge pump high current
Charge pump low current
Lock detector enable
Set current high
Oscillator adjust
Push pull output 5V
Open collector output
Lock detector output
PREDIVIDER
PRESCALER
REGISTER
REGISTER
PC0 ...PC4
COUNTER
R0 ...R15
M/M+1
: R
A
FUNCTION
D95AU375A
fsyn
REGISTER
PC5 ... P15
fref
COUNTER
: B
PD
TO CHARGE
PUMP
TDA7427A
7/21