 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MC13110A Datasheet(PDF) 54 Page - Motorola, Inc |
|
|
|||||||||||||||||||||||||||||
MC13110A Datasheet(HTML) 54 Page - Motorola, Inc |
|
|
54 / 68 page  MC13110A/B MC13111A/B 54 MOTOROLA ANALOG IC DEVICE DATA Clock Divider/Voltage Adjust Register This register controls the divider value for the programmable switched capacitor filter clock divider, the low battery detect threshold select, the voltage reference adjust, and the scrambler bypass mode (MC13110A/B only). Operation is explained in Figures 127 through 134. The Tx and Rx Audio bits are don’t cares for either the MC13111A or the MC13111B device. However, for the MC13110A/B, these bits are defined. Figure 129 describes the operation. Note the power–up default bit is set to <0>, which is the scrambler bypass mode. Low Battery Detect The low battery detect circuit can be operated in programmable and non–programmable threshold modes. The non–programmable threshold mode is only available in the 52 QFP package. In this mode, there are two low battery detect comparators and the threshold values are set by external resistor dividers which are connected to the REF1 and REF2 pins. In the programmable threshold mode, several different threshold levels may be selected through the “Low Battery Detect Threshold Register” as shown in Figure 128. The power–on default value for this register is <0,0,0> and is the non–programmable mode. Figure 130 shows equivalent schematics for the programmable and non–programmable operating modes. Figure 127. Clock Divider/Voltage Adjust Latch Bits 00 6–b Switched Capacitor Filter Clock Counter Latch 4–b Voltage Reference Adjust 3–b Low Battery Detect Threshold Select 0 MSB MSB LSB LSB (MC13111A/B) Tx Sbl Bypass Rx Sbl Bypass 6–b Switched Capacitor Filter Clock Counter Latch 4–b Voltage Reference Adjust 3–b Low Battery Detect Threshold Select 0 MSB MSB LSB LSB (MC13110A/B) Figure 128. Low Battery Detect Threshold Selection Low Battery Detect Threshold Select Bit #2 Low Battery Detect Threshold Select Bit #1 Low Battery Detect Threshold Select Bit #0 Select # Operating Mode Nominal Low Battery Detect Threshold Value (V) 0 0 0 0 Non–Programmable N/A 0 0 1 1 Programmable 2.850 0 1 0 2 Programmable 2.938 0 1 1 3 Programmable 3.025 1 0 0 4 Programmable 3.200 1 0 1 5 Programmable 3.288 1 1 0 6 Programmable 3.375 1 1 1 7 Programmable 3.463 NOTE: 17. Nominal Threshold Value is before electronic adjustment. Figure 129. MC13110A/B Bypass Mode Bit Description (MC13110A/B Only) Tx Scrambler Bypass 1 0 Tx Scrambler Post–Mixer LPF and Mixer Bypassed Normal Operation with Tx Scrambler Rx Scrambler Bypass 1 0 Rx Scrambler Post–Mixer LPF and Mixer Bypassed Normal Operation Rx Scrambler |
Similar Part No. - MC13110A |
|
Similar Description - MC13110A |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
