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参数资料
| 型号： | TEA5766UK/N1,118 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | FM, AUDIO SINGLE CHIP RECEIVER, PBGA25 |
| 封装： | 3.30 X 3.25 MM, 0.60 MM HEIGHT, WLCSP-25 |
| 文件页数： | 3/59页 |
| 文件大小： | 273K |
| 代理商： | TEA5766UK/N1,118 |
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TEA5766UK_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 22 March 2007
11 of 59
NXP Semiconductors
TEA5766UK
Stereo FM radio + RDS
[1]
This table is valid until 31.25 ms after the tuning cycle has completed. It shows the outcome of the ag
register when a read is done after INTX has gone LOW with the condition that no other mask bits are set
than shown in the table.
7.20.1 Auto high-side and low-side injection stop switch
The channel quality can sometimes be improved in case of image frequency interference.
This can be achieved if the Local Oscillator (LO) injection is positioned at the opposite
side of the wanted channel (see Figure 3). Indication for image frequency interference can
be derived from the IF frequency counter. To enable this feature the AHLSI bit must be set
to logic 1.
The search/preset algorithm will stop and generate an interrupt event after the detection
of a valid RSSI level in combination with a frequency outside the IF frequency window.
The host processor can detect this state by reading the interrupt register. Swap of the LO
injection is achieved by inversion of bit HLSI in combination with a new tuning word for the
changed oscillator frequency (see Section 7.5).
7.20.2 Muting during search or preset
During preset and search the tuner is always muted, which is done by the algorithm itself.
When the AHLSI bit is set and the tuner has stopped during a preset or a search because
of a wrong IF count, the tuner keeps muted and generates an interrupt event. In this way
the host processor can switch the high or low setting quietly and waits for the new result.
All these mute actions are done by blocking the audio signal and the audio output will
keep its DC level and stay in low-impedance state i.e. 50
(see Table 4). A hard mute
with the MU bit will cause a plop.
101a preset or search has been done, but the wanted channel
has a valid RSSI level but fails the IF count; when AHLSI
was set HLSI must be toggled and a new PLL value must be
programmed; FRRMSK set
1
0
not a valid state
1
band limit is reached during search; no valid channel found;
BLMSK or FRRMSK set
Table 5.
Tuner truth table[1] …continued
Bit
Comment
IFFLAG
BLFLAG
FRRFLAG
Fig 3.
Switch LO from high-side injection to low-side injection using the HLSI bit
001aab460
image on high-side
wanted channel
switch LO from high-side to low-side
image on low-side
相关PDF资料 |
PDF描述 |
|---|---|
| TEA5766UK/N1/S21,0 | FM, AUDIO SINGLE CHIP RECEIVER, PBGA25 |
| TEA5766UK/N1/S21,1 | FM, AUDIO SINGLE CHIP RECEIVER, PBGA25 |
| TEA5766UK | FM, AUDIO SINGLE CHIP RECEIVER, PBGA25 |
| TEA5777HL/N2,118 | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP32 |
| TEA5777HN/N2,518 | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQCC48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TEA5767 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:single-chip FM stereo radio |
| TEA5767HL | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low-power FM stereo radio for handheld applications |
| TEA5767HN | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Low-power FM stereo radio for handheld applications |
| TEA5767HN/V3 | 功能描述:射频收发器 FM RECEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| TEA5767HN/V3,118 | 功能描述:射频收发器 FM RECEIVER RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
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