參數(shù)資料
型號(hào)： DMA2280
英文描述： Consumer IC
中文描述： 消費(fèi)性IC
文件頁(yè)數(shù)： 7/36頁(yè)
文件大?。?/td> 496K
代理商： DMA2280
DMA 2271, DMA 2280, DMA 2281
7
Pin 49 – AGC Output AGC (Fig. 2–9)
This tristate–controlled output allows automatic gain
control (AGC) with a three–level signal. High level
means that the input level of the baseband signal is too
low, low level means that the input level of the baseband
signal is too high. In the high impedance state the level
of the baseband signal is in the proper range.
Pin 50 – Combined Output for Horizontal Blanking and
Color KEY (Fig. 2–9)
This output is a tristate–controlled output. In conjunction
with the input load represented by the VCU 2133 Video
codec, the three level blanking and key is produced.
High level means active line, high impedance state
means horizontal blank and low level means color key.
Pin 51 – Combined Output for Horizontal Blanking and
Vertical Blanking CBL (Fig. 2–9)
In conjunction with the input load represented by the
VCU 2133 Video Codec, the three level combined blank-
ing pulse is produced. High level means active line, high
impedance means horizontal blanking and low level
means vertical blanking.
Pin 52 – Data Burst Window DBW (Fig. 2–9)
This output supplies the data burst window signal which
can be used to switch an external de–emphasis net-
work. This signal is active high in line 625 and during the
data burst in each line.
Pin 53 – Composite Sync Output CSYNC (Fig. 2–8)
This output supplies a composite synchronization signal
as it may be used by the DPU 25xx Deflection Processor
or by other units which need a composite synchroniza-
tion signal which is not contained in the MAC baseband
signal.
Pin 54 – Test Input/Output T0 (Fig. 2–8)
This pin is used for testing the DMA 2271, DMA 2280,
and DMA 2281 during production.
Pin 55 – Packet Data Output PDAT (Fig. 2–10)
PDAT is used to put out each received packet, de–inter-
leaved, with Golay corrected header and with error–cor-
rected BT Byte. This pin used to connect the DMA 2275,
DMA 2285 or DMA 2286 Descrambler IC.
Pin 56 – Descrambled Packet Data Input DPDAT (Fig.
2–2)
This pin is used in conjunction with PDAT, if conditional
access signals must be descrambled, DPDAT receives
the descrambled packet data from the DMA 2275, DMA
2285 or DMA 2286 Descrambler IC.
Pin 57 – Teletext Sync Output TSYNC (Fig. 2–9)
This pin supplies a signal which marks the part of the VBI
lines containing Teletext data.
Pin 58 – Burst Sync Output BSYNC (Fig. 2–4)
This connection supplies a synchronization signal for
the Burst Data Output. The Sync Pulse marks the Line
Synchronization Word LWS of each, and the Clock Run
In CRI and Frame Sync Word FSW in line 625.
Pin 59 – Burst Data Output BDAT (Fig. 2–4)
This output supplies the recovered an decoded duobina-
ry data contained in a MAC signal. This signal may serve
as an input signal for the TPU 27xx Teletext Processor
or the DMA 2275, DMA 2285, DMA 2286 MAC Des-
crambler processor or for other purposes.
Pin 60 – Burst Clock Output BCLK (Fig. 2–9)
This pin supplies the data clock signal required for the
serial data transfer of the Burst Data signal. The fre-
quency of this signal is equal MCLK or MCLK/2 con-
trolled by parameter Data Rate Select DRS via IM Bus.
Pin 61 – Ground GND
Pin 62 – Main Clock Input MCLK (Fig. 2–4)
By means of this input, the DMA 2271, DMA 2280 and
DMA 2281 receive the required main clock signal from
the MCU 2600 Clock Generator IC.
Pin 63 – Supply V
SUP
Pin 64, 66, and 67 – Sound Bus Ident SBI (Fig. 2–9)
Data SBD and Clock SBC (Fig. 2–8)
These pins supply the Clock, Data and Ident signals to
the AMU 2481 Mixing Unit via the serial three–line
Sound Bus.
Pin 65 – Audio Clock Output ACLK (Fig. NO TAG)
This pin supplies the ACLK Audio Clock signal for the
AMU 2481.
Pin 68 – Column Address Select CASQ (Fig. 2–10)
This pin supplies the Column Address Select signal for
the external RAM.
相關(guān)PDF資料
PDF描述
DMA2281 Consumer IC
DMA2275 DMA 2275, DMA 2286 C/D/D2-MAC Descrambler
DMA2286 DMA 2275, DMA 2286 C/D/D2-MAC Descrambler
DMB01CM24 Timers Multifunction
DMB01DM24 LIN fail-safe system basis chip; Package: SOT549-1 (HTSSOP32); Container: Reel Dry Pack, SMD, 13"
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DMA2281 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC
DMA2286 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:DMA 2275, DMA 2286 C/D/D2-MAC Descrambler
DMA230A20A 制造商:M.E.C. TIMERS 功能描述:
DMA24 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:IGBTVSTM AC LINE TRANSIENT VOLTAGE SUPPRESSOR
DMA24A10 制造商:M.E.C. TIMERS 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*