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參數(shù)資料
| 型號(hào)： | LC85050 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Cordless Answering Machine System IC(無(wú)繩應(yīng)答電話(huà)機(jī)系統(tǒng)芯片) |
| 中文描述： | 無(wú)繩電話(huà)應(yīng)答機(jī)系統(tǒng)集成電路（無(wú)繩應(yīng)答電話(huà)機(jī)系統(tǒng)芯片） |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 43K |
| 代理商： | LC85050 |
LD-ADPCM function (waveform encoding) (optional
function)
—Compression ratio: 14.4, 21.6, and 28.8 kbps
—Automatic input gain adjustment function
—Voice trigger function
—Tail cut function
Text-to-speech synthesis function
—Accent adjustment
—Katakana input
Voice recognition function
—Speaker-independent recognition (15 words)
—Speaker-dependent recognition (50 words)
Flash memory management function (8M address space)
—Flash memory: 4 M (
×
1 or
×
8)
Full-duplex hands-free function
—Line echo canceler
—Audio echo canceler for speakerphone operation
—
Telephone conversation recording using LD-ADPCM (option)
—DTMF detection
—Caller ID detection
Modem functions
—Bell 202 (1200 bps) send/receive
—ITU-T V.23 (1200 bps) send/receive
—Synchronous/asynchronous communication functions
Start/stop synchronization, HDLC, DDI, and NTT
support
—Programmable reception sensitivity
(–10 dBm to –47 dBm)
Programmable tone generation and detection
—Individually adjustable reception sensitivity
(–10 dBm to –47 dBm)
DTMF generation and detection
Call progress tone detection
—Adjustable reception sensitivity
(–10 dBm to –47 dBm)
Melody function (option)
Programmable transmission level (0 dBm to –15 dBm)
Reception dynamic range: 0 to –47 dBm
Self-diagnostic function
Monitor output function
Host CPU interface
—3-wire serial interface (clock synchronous)
—8-bit parallel interface
Output ports (up to 12 ports):
3 output ports are always available.
Low-power CMOS
Supply voltage
—Single 3.3 V supply, or dual 3.3 and 5.0 V supply
voltages
Package: QIP-80E
No. 6237-2/7
LC85050
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
3
V
DD
5
V
I
3, V
O
3
V
I
5, V
O
5
Pdmax
–0.3 to +4.2
V
–0.3 to +6.0
V
I/O voltages
–0.3 to V
DD
3 + 0.3
–0.3 to V
DD
5 + 0.3
V
V
Allowable power dissipation
Ta
≤
25°C
500
mW
Operating temperature
Topr
–30 to +70
°C
Storage temperature
Tstg
–55 to +125
°C
Soldering conditions
Hand soldering
3 seconds
350
°C
Reflow soldering
10 seconds
235
°C
Specifications
Absolute Maximum Ratings
at Ta = 25°C, GND = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply voltage
V
DD
3
V
DD
5
V
IN
3
V
IN
5
3.0
3.3
3.6
V
3.0
5.0
5.5
V
Input voltage range
0
V
DD
3
V
DD
5
V
0
V
Allowable Operating Ranges
at Ta = –30 to +70°C, GND = 0 V
Applicable pins
V
I
3, V
O
3, V
IN
3: PLLI, PLLO, RIN, AUXO, AUXI, SPOUT, MIC, VREF, TXA, RXA
V
I
5, V
O
5, V
IN
5: All pins other than the above.
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