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Feature Phone
Welcome for using HW Feature Phone FAQ, all sub categories are listed as below
MT6260
[FAQ04965][ABB Charger]VDRV引脚上的mos可否拿掉
[DESCRIPTION]
VDRV引脚上的mos可否拿掉
[SOLUTION]
VDRV引脚上加nmos是为保护该引脚不被高电压损坏，60上严禁拿掉该mos器件
[FAQ04966][ABB Driver]Kpled电流大小[DESCRIPTION]
KPled电流范围是多少？调整范围有哪些？
[SOLUTION]
Kpled电流为60mA，寄存器上无法调整，只有开和关。但用于Kpled的PWM占空比可以调整（0%，50%，100%）
因此Kpled实际电流可以为30mA和60mA。
[FAQ05271][ABB QA]internal 32k 时VRF电源是否长开
[DESCRIPTION]
internal 32k ，VRF 为26m 供电，所以在关机模式VRF 也有输出？对吗？[SOLUTION]
Yes, VTCXO merge into VRF ， VRF行為同6250上的CTCXO
[FAQ05270][ABB QA]LDO电源VBT与VTCXO [DESCRIPTION]
LDO 没有了VBT 以及VTCXO ，那这些模块由什么电源供电？
[SOLUTION]
VTCXO merge into Vrf. Vrf LDO(E2)= power input pin for RF VBT merge to VIO28, VIO28 LDO(U8)= power input pin for BT
[FAQ05269][ABB QA]sink 是否可以单独开关控制[DESCRIPTION]
Isink 是否可以单独开关控制？是否可以分别配置不同的电流档位?比如ISINK0=24MA，ISNK1=16MA
[SOLUTION]
每個Channel可獨立on/off @register mode, 及配置不同的电流档位.但@ PWM mode,只有1個PWM 只能有一個duty.
[FAQ05272][ABB QA]VCORE输出电压范围[DESCRIPTION]
VCORE输出电压下限为0.75V？减小的考虑是？
[SOLUTION]
VCORE的输出范围为0.75V-1.35V，主要是基于low power的考虑，对应用方面没有影响
[FAQ05651][ABB QA]VIBR的输出电压是否有
1.3V的Setp？
Q：VIBR的输出电压是否有1.3V的Setp？
A：目前60上面是没有1.3V的step，VIBR只有1.8,2.8,3.0V三个step，默认输出电压是2.8V。
所以贵司在选择vibrator的时候，还请注意额定电压的范围。
[FAQ05437][Audio QA]Class-K 的输出为什么不是方波？怎么区分Class-K和Class-AB
Q：Class-K 的输出为什么不是方波？怎么区分Class-K和Class-AB
A：有一个前提很重要：我们的Class-K=Class-AB + Charge pump而不是传统的Class-K=Class-D+ Charge pump；
有了这一个前提，就很好理解为什么Class-K的输出不是方波了。
至于怎么区分是哪一种模式，有几种办法：
1，请看原理图上面是否有连接开关电容，如果没有，那么一定就是Class-AB了，如果有，也就是按照我们reference design 进行的设计；
2，请把VBAT的电压降到4V一下，ex.3.8V同时设定analog gain 比较大(160)，然后又三种办法可以测试：
a，测试一下VBOOST，您可以看到VBOOST的电压在4.2V左右，
b，测试FLYP/N这个时候您可以测试到一个方波，频率在600KHz，
c，直接测试SPKP-SPKN的电压，这个时候您可以看到输出电压的峰峰值可以超过2*VBAT。
最后还有一点需要提醒：SW的版本请升级到MP的版本。
[FAQ05069][Audio QA]如果不用Class-K的话，可以省掉那些器件
Q：如果不需要用到internal Class-K，但是想用Class-AB的话，是否可以省掉大电容？
A：是的，如果只需要用Class-AB的话，可以不需要大电容，具体的解法如下：
K1，K2，L2 pin请悬空，L3，M3(VBAT Pin) pin 请直接连接到VBAT，K4 pin 直接接地。
[FAQ05164][DBB Camera]1/2 data Serial Camera Interface 设计
[DESCRIPTION]
MT6260 1/2 data Serial Camera Interface 设计
[SOLUTION]
1. MT6260 Can support 1/2 data Serial Camera
BB 端CMCSD 只接SPI data0,
BB 端CMCSD1 只接SPI data1,
两data 之间不能互换接。
2. MT6260 Can Support 2.8v/1.8v Serial Camera.
1) 2.8V Serial Camera interface
2) 1.8V Serial Camera interface
[FAQ05073][DBB LCM] 1/2 data Serial LCM Interface 设计
[DESCRIPTION]
MT6260 1/2 data Serial LCM Interface 设计
[SOLUTION]
1. 6260 Can support 1.8v/
2.8v Serial LCM
1) 1.8v Serial LCM Interface
2) 2.8V Serial LCM Interface
2. MT6260 Can Support 2 data Serial LCM 1) 1.8V Serial LCM
LSDA0(GPIO38) 接data0
LSA0DA0(GPIO36)接data1
2) 2.8V Serial LCM
LSDA1(GPIO53) 接data0,
LSA0DA1(GPIO51) 接data1
3. 3/4 line 的区分：
对于BB而言所谓三线：SDO，SCL，CS
对于BB而言所谓四线：SDO，SCL，RS，CS 对于SPI而言所谓三线：SDI，SCL，CS
对于SPI而言所谓四线：SDI，SDO, SCL，CS
[FAQ05070][DBB LCM]8bit Parallel Interface LCM design notice
[DESCRIPTION]
MT6260 8bit Parallel Interface LCM design notice
[SOLUTION]
6260 Support 8/9 bit CPU Parallel Interface LCM(1.8V IO level),
接8bit LCM ，MT6260 端由低接到高位即data[0:7]，
如果接错成60 data[2:9]，软件无法切换上下8位。
注意的是Module端不是这样的，这个要按照Driver IC的Spec来做。
[FAQ05075][DBB LCM]MT6260 Serial LCM 能支持到多大分辨率？帧率多少？
[DESCRIPTION]
MT6260 Serial LCM 能支持到多大分辨率？帧率多少？
[SOLUTION]
1. Serial 1-data Support 到QCIF+,
2. Serial 2- data Support 到QVGA ,
3. 两者帧率都是30fps .
[FAQ06586][DBB QA]60平台serial flash pin 是否可以做普通GPIO使用
[DESCRIPTION]
60平台serial flash pin 是否可以做普通GPIO使用
[SOLUTION]
对于60而言，如果IC 版本是60D/M/S,这些internal serial flash 的IC ，没有将serial flash 的pin 引出，所以当然是不能作为GPIO 使用的；
对于60A而言，外部必须接serial flash ，所以，这些pin 同样是不能当做GPIO 使用！