三星Galaxy S8 拆解大全(2)

The selfie camera from this G950W model was sourced from Sony. Sony typically does not use conventional die markings on its back-illuminated small-pixel mobile image sensor chips, however the part number has beenreported to be the IMX320. The IMX320 is a stacked (Exmor RS) CMOS image sensor (CIS) with a die size of

4.07 mm x 4.82 mm (19.6 mm2) and a pixel pitch of 1.12 µm. Our initial findings suggest it is a conventional back-illuminated (Exmor R) chip, but we’ll be doing more work to learn if it is a stacked (Exmor RS) chip with direct bond interconnect (DBI).

a  input voltage 0.9v 4.4v  output voltage 2.5v 4.3v (up to 5v with schottky)  low switch on resistance rds(on), internal switch: 0.33Ω  1.4mhz fixed frequency switching  automatic pwm/pfm mode switching  high switch on current: 700ma  current-mode control and internal compensation  low profile sot-23-6 package (lead-free packaging is now available)。 these characteristics of soviet policy, like the postulate from which they flow, are basic to the internal nature of soviet power, and will be with us, whether in the foreground or the background, until the internal nature of soviet power is changed。19. the following rules are used to determine whether two values are identical according to the === operator:。

(non-stacked) back-illuminated CIS featuring a 4.63 mm x 3.55 mm (16.4 mm2) die size and a pixel pitch of 1.12 µm. Additional details are available in our off-the-shelf Device Essentials Image Set and Summary report

(DEF-1609-801).

We’ll catch up with an update on the the rear-facing camera as results come in from our labs.

Skyworks 2G SKY77365 Power Amplifier Module

Although AT&T announced the shutdown of their 2G cellular network, the appearance of a separate Skyworks 2G RF PAM found in the Galaxy S8 SM-G950W is evidence there is still plenty of interest and need for cell phone OEMs to build devices supporting the legacy network bands. Even if other US cellular carriers follow AT&T and shut off their own 2G networks, 2G cellular will remain active in the UK and many European countries, such as France and Germany, until 2022.

The question is why a separate power amplifier? We asked our in-house RF subject matter expert, Tareq Salim, and his take is this: “...the other multi-mode, multi-band PAMs use amplifiers that are not optimal to work with native 2G GMSK [Gaussian minimum shift keying]. The key success factor for GMSK is having a fixed gain, which the Skyworks SKY77365 achieves.”

Inertial, Pressure, and Gyroscope Sensors

So far we have observed a few wins for STMicroelectronics sensors in the S8, beginning with an LPS22HB pressure sensor situated just under the primary image sensor.

We also see an optical image stabilization (OIS) gyroscope with the part number K2G2IS.

The inertial sensor slot also belongs to STMicroelectronics with the LSM6Dl 6-axis inertial sensor, located behind and just under the primary camera, on the opposite side, next to the brand new NXP PN80T NFC controller.

This NFC device is new to us and will be going into the lab as soon as possible. Given that we have analyzed every generation of NXP NFC devices, of course we will be studying this one too, looking for innovation.

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