 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MC13110A Datasheet(PDF) 46 Page - Motorola, Inc |
|
|
|||||||||||||||||||||||||||||
MC13110A Datasheet(HTML) 46 Page - Motorola, Inc |
|
|
46 / 68 page  MC13110A/B MC13111A/B 46 MOTOROLA ANALOG IC DEVICE DATA Figure 110. Latch Register Power–Up Defaults Ri C MSB LSB Register Count 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Tx 9966 – – 1 0 0 1 1 0 1 1 1 0 1 1 1 0 Rx 7215 – – 0 1 1 1 0 0 0 0 1 0 1 1 1 1 Ref 2048 – – 0 0 1 0 0 0 0 0 0 0 0 0 0 0 Mode N/A – 0 0 0 0 1 1 0 1 1 1 0 1 1 1 1 Gain N/A – 0 1 1 1 1 0 1 1 1 1 1 0 1 0 0 SCF (MC13110A/B) 31 – 0 0 0 0 1 1 1 0 0 0 1 1 1 1 1 SCF (MC13111A/B) 31 – 0 0 0 0 1 1 1 – – 0 1 1 1 1 1 Aux N/A – – – – – – – – – 0 0 0 0 0 0 0 NOTE: 12. Bits 6 and 7 in the SCF latch register are ”Don’t Cares” for the MC13111A/B since this part does not have a scrambler. Tx and Rx Counter Registers The 14 bit Tx and Rx counter registers are used to select the transmit and receive channel frequencies. In the Rx counter there is an “IP3 Increase” bit that allows the ability to trade off increased receiver mixer performance versus reduced power consumption. With “IP3 increase” = <1>, there is about a 10 dB improvement in 1 dB compression and 3rd order intercept for both the 1st and 2nd mixers. However, there is also an increase in power supply current of 1.3 mA. The power–up default for the MC13111A/B is “IP3 Increase” = <0>. The register bits are shown in Figure 111. Reference Counter Register Reference Counter Figure 113 shows how the reference frequencies for the Rx and Tx loops are generated. All countries except the U.K. require that the Tx and Rx reference frequencies be identical. In this case, set “U.K. Base Select” and “U.K. Handset Select” bits to “0”. Then the fixed divider is set to “1” and the Tx and Rx reference frequencies will be equal to the crystal oscillator frequency divided by the programmable reference counter value. The U.K. is a special case which requires a different reference frequency value for Tx and Rx. For U.K. base operation, set “U.K. Base Select” to “1”. For U.K. handset operation, set “U.K. Handset Select” to “1”. The Netherlands is also a special case. A 2.5 kHz reference frequency is used for both the Tx and Rx reference and the total divider value required is 4096. This is larger than the maximum divide value available from the 12–bit reference divider (4095). In this case, set “U.K. Base Select” to “1” and set “U.K. Handset Select” to “1”. This will give a fixed divide by 4 for both the Tx and Rx reference. Then set the reference divider to 1024 to get a total divider of 4096. Figure 111. Rx and Tx Counter Register Latch Bits 14–b Tx Counter MSB LSB 14–b Rx Counter MSB LSB Tx Counter Latch 0 0 IP3 Increase 0 Rx Counter Latch Figure 112. Reference Counter Register 12–b Ref Counter MSB LSB U.K. Handset Select U.K. Base Select 0 0 |
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
