Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

UPD9930 Datasheet(PDF) 32 Page - NEC

Part # UPD9930
Description  LINEAR CODEC FOR DIGITAL CELLULAR TELEPHONE
PDF  78 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD9930 Datasheet(HTML) 32 Page - NEC

Back Button UPD9930 Datasheet HTML 28Page - NEC UPD9930 Datasheet HTML 29Page - NEC UPD9930 Datasheet HTML 30Page - NEC UPD9930 Datasheet HTML 31Page - NEC UPD9930 Datasheet HTML 32Page - NEC UPD9930 Datasheet HTML 33Page - NEC UPD9930 Datasheet HTML 34Page - NEC UPD9930 Datasheet HTML 35Page - NEC UPD9930 Datasheet HTML 36Page - NEC Next Button
Zoom Inzoom in Zoom Outzoom out
 32 / 78 page
background image
µPD9930
32
Register address
TXGCR
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
1
0
REC2PDB
TXAG
REC2PDB
0
1
Receiver amplifier 2 power up/down specification
Power down
Power up
TXAG
0
1
Pre-filter analog gain specification
Sets to 0 dB
Sets to –3 dB
4.1.1 Voice Send Analog Gain/Receiver Amplifier 2 Control Register (TXGCR)
This register controls pre-filter gain. It also controls receiver amplifier 2 power up/down as shown in Table
4-1 (Refer to 2.1.6 Power Up/Down Control).
When power is down, the contents of the register area retained. After power is up, control continues as before
power was down.
Figure 4-2 Voice Send Analog Gain/Receiver Amplifier 2 Control Register
Table 4-1 Function Specification by Send Analog Gain/Receiver Amplifier 2 Control Register
Register address
TXGCR
HEXNote
D7 D6
D5
D4
D3
D2
D1
D0
M
L
0
0011000
Power down
0 dB
18H 18H
At reset
0
0
1
Power down
–3 dB
19H 98H
0
1
0
Power up
0 dB
1AH 58H
0
1
1
Power up
–3 dB
1BH D8H
Note M: HEX value with MSB first
L: HEX value with LSB first
Receiver amplifier 2
Voice send analog gain
Remarks



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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