MSM7590L-01 데이터 시트보기 (PDF) - Oki Electric Industry
부품명
상세내역
일치하는 목록
MSM7590L-01 Datasheet PDF : 26 Pages
| |||
¡ Semiconductor
MSM7590L-01
(7) CR6 (VOX function control)
CR6
Initial Value
B7
VOX
ON/OFF
0
B6
ON
LVL1
0
B5
ON
LVL0
0
B4
OFF
TIME
0
B3
VOX IN
0
B2
B1
B0
RX NOISE RX NOISE RX NOISE
LEVEL SEL LVL1
LVL0
0
0
0
B7 ... VOX function enable; 0/Disable, 1/Enable
B6, B5 ... Transmit signal energy detect (Transmit VOX) threshold (at 1000 Hz)
(0, 0): –30 dBm0
(0, 1): –35 dBm0
(1, 0): –40 dBm0
(1, 1): –45 dBm0
B4 ... Hang-over time (Fig.2, TVXOFF); 0/160 ms, 1/320 ms
B3 ... Receive VOX function setting; 0/Background noise transmit, 1/Voice signal detect
When using this data for control, set pin VOXI at “0” level.
B2 ... Background noise amplitude setting;
0/Automatic, 1/Programmable by B1 and B0
Automatic : Set the noise at the voice signal amplitude when B3 (or VOXI) changes from
“1” to digital “0”.
B1, B0 ... (0, 0): No noise
(0, 1): –55 dBm0
(1, 0): –45 dBm0
(1, 1): –35 dBm0
(8) CR7 (Detect register, read only)
CR7
Initial Value
B7
B6
B5
B4
B3
B2
B1
B0
VOX TX NOISE TX NOISE
—
—
—
—
—
OUT
LVL1
LVL0
0
0
0
*
*
*
*
*
* For IC test
B7 ... Transmit VOX function result; 0/Silence, 1/Voice
B6, B5 ... Transmit Silence level (indicator);
(0, 0) : Below –60 dBm0
Note: These outputs are valid only when the VOX
(0, 1) : –50 to –60 dBm0
function is enabled by CR6-B7.
(1, 0) : –40 to –50 dBm0
(1, 1) : Above –40 dBm0
B4 ... Not used
B3 ... Not used
B2 ... Not used
B1 ... Not used
B0 ... Not used
24/26
Share Link: 