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参数资料
| 型号： | AD6634BBC |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | 80 MSPS, Dual-Channel WCDMA Receive Signal Processor (RSP) |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, PBGA196 |
| 封装： | 15 MM X 15 MM, BGA-196 |
| 文件页数： | 37/52页 |
| 文件大小： | 925K |
| 代理商： | AD6634BBC |
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REV. 0
AD6634
–37–
0x80: Channel Sleep Register
This register contains the SLEEP bit for the channel. When this
bit is high, the channel is placed in a low power state. When this
bit is low, the channel processes data. This bit can also be set by
accessing the SLEEP register at external address 3. When the
External SLEEP register is accessed, all four channels are
accessed simultaneously and the SLEEP bits of the channels
are set appropriately.
0x81: Soft_SYNC Register
This register is used to initiate SYNC events through the
microport. If the Hop bit is written high, the Hop Hold-Off
Counter at address 0x84 is loaded and begins to count down.
When this value reaches 1, the NCO Frequency register used by
the NCO accumulator is loaded with the data from channel
addresses 0x85 and 0x86. When the Start bit is set high, the
Start Hold-Off Counter is loaded with the value at address
0x83 and begins to count down. When this value hits 1, the Sleep
bit in address 0x80 is dropped low and the channel is started.
0x82: Pin_SYNC Register
This register is used to control the functionality of the SYNC
pins. Any of the four SYNC pins can be chosen and monitored
by the channel. The channel can be configured to initiate either
a Start or Hop SYNC event by setting the Hop or Start bit high.
These bits function as enables so that when a SYNC pulse
occurs, either the Start or Hop Hold-Off Counters are activated
in the same manner as with a Soft_SYNC.
0x83: Start Hold-Off Counter
The Start Hold-Off Counter is loaded with the value written to
this address when a Start_Sync is initiated. It can be initiated
by either a Soft_SYNC or Pin_SYNC. The counter begins
decrementing and when it reaches a value of 1, the channel is
brought out of SLEEP and begins processing data. If the channel
is already running, the phase of the filters is adjusted such that
multiple AD6634s can be synchronized. A periodic pulse on the
SYNC pin can be used in this way to adjust the timing of the filters with
the resolution of the ADC sample clock. If this register is written
to a 1, the Start will occur immediately when the SYNC comes
into the channel. If it is written to a 0, no SYNC will occur.
0x84: NCO Frequency Hold-Off Counter
The NCO Frequency Hold-Off Counter is loaded with the value
written to this address when either a Soft_SYNC or Pin_SYNC
comes into the channel. The counter begins counting down so
that when it reaches 1, the NCO frequency word is updated
with the values of addresses 0x85 and 0x86. This is known as a
Hop or Hop_SYNC. If this register is written to a 1, the NCO
Frequency will be updated immediately when the SYNC
comes into the channel. If it is written to a 0, no HOP will
occur. NCO HOPs can be either phase continuous or nonphase
continuous, depending upon the state of Bit 3 of the NCO
control register at channel address 0x88. When this bit is low,
the phase accumulator of the NCO is not cleared but starts to
add the new NCO frequency word to the accumulator as soon as
the SYNC occurs. If this bit is high, the phase accumulator of
the NCO is cleared to 0 and the new word is then accumulated.
0x85: NCO Frequency Register 0
This register represents the 16 LSBs of the NCO Frequency
word. These bits are shadowed and are not updated to the regis-
ter used for the processing until the channel is either brought
out of SLEEP or a Soft_SYNC or Pin_SYNC has been issued.
In the latter two cases, the register is updated when the Frequency
Table X. Channel Address Memory Map
Channel
Address
Bit
Width
Register
Comments
128
×
20-Bit Memory
0: SLEEP Bit from EXT_ADDRESS 3
1: Hop
0: Start
2: First SYNC Only
1: Hop_En
0: Start_En
Start Hold-Off Value
NCO_FREQ Hold-Off Value
NCO_FREQ[15:0]
NCO_FREQ[31:16]
NCO_PHASE[15:0]
8–7: SYNC Input Select[1:0]
6: WB Input Select B/A
5–4: Input Enable Control
11: Clock on IEN Transition to Low
10: Clock on IENTransition to High
01: Clock on IEN High
00: Mask on IEN Low
3: Clear Phase Accumulator on HOP
2: Amplitude Dither
1: Phase Dither
0: Bypass (A-Input
→
I-Path, B
→
Q)
00–7F
80
81
Coefficient Memory (CMEM)
CHANNEL SLEEP
Soft_Sync Control Register
20
1
2
82
Pin_SYNC Control Register
3
83
84
85
86
87
88
Start Hold-Off Counter
NCO Frequency Hold-Off Counter
NCO Frequency Register 0
NCO Frequency Register 1
NCO Phase Offset Register
NCO Control Register
16
16
16
16
16
9
89–8F
Unused
相关PDF资料 |
PDF描述 |
|---|---|
| AD6634PCB | 80 MSPS, Dual-Channel WCDMA Receive Signal Processor (RSP) |
| AD6635 | 4-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP) |
| AD6635BB | 4-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP) |
| AD6636 | 150 MSPS Wideband Digital Down-Converter (DDC) |
| AD6636BBCZ1 | 150 MSPS Wideband Digital Down-Converter (DDC) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD6634BBCZ | 功能描述:IC RSP 80MSPS DUAL 196CSPBGA RoHS:是 类别:RF/IF 和 RFID >> RF 混频器 系列:AD6634 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:100 系列:- RF 型:W-CDMA 频率:2.11GHz ~ 2.17GHz 混频器数目:1 增益:17dB 噪音数据:2.2dB 次要属性:- 电流 - 电源:11.7mA 电源电压:2.7 V ~ 3.3 V 包装:托盘 封装/外壳:12-VFQFN 裸露焊盘 供应商设备封装:12-QFN-EP（3x3） |
| AD6634BC/PCB | 制造商:Analog Devices 功能描述:WCDMA RECEIVE SGNL PROCESSOR - Bulk |
| AD6634PCB | 制造商:AD 制造商全称:Analog Devices 功能描述:80 MSPS, Dual-Channel WCDMA Receive Signal Processor (RSP) |
| AD6635 | 制造商:AD 制造商全称:Analog Devices 功能描述:4-Channel, 80 MSPS WCDMA Receive Signal Processor (RSP) |
| AD6635BB | 功能描述:IC RSP 80MSPS QUAD 324-BGA RoHS:否 类别:RF/IF 和 RFID >> RF 混频器 系列:AD6635 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:100 系列:- RF 型:W-CDMA 频率:2.11GHz ~ 2.17GHz 混频器数目:1 增益:17dB 噪音数据:2.2dB 次要属性:- 电流 - 电源:11.7mA 电源电压:2.7 V ~ 3.3 V 包装:托盘 封装/外壳:12-VFQFN 裸露焊盘 供应商设备封装:12-QFN-EP（3x3） |
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